Document
... • Mass is a property of objects, producing a reluctance to accelerate, called inertia • Velocity refers to both speed and direction • Acceleration means a change in velocity (either magnitude, or direction or both) • If an object is accelerating, it is being acted upon by a force, and F = ma. No exc ...
... • Mass is a property of objects, producing a reluctance to accelerate, called inertia • Velocity refers to both speed and direction • Acceleration means a change in velocity (either magnitude, or direction or both) • If an object is accelerating, it is being acted upon by a force, and F = ma. No exc ...
Acceleration Testing Handout
... • As they say when a person falls from a great height, it is not the high terminal velocity that produces the problem ‐ it is the high rate of change of velocity at the end of the fall that creates the problem! • Rate of change of velocity is the definition of acceleration. • Strictly speaking, ...
... • As they say when a person falls from a great height, it is not the high terminal velocity that produces the problem ‐ it is the high rate of change of velocity at the end of the fall that creates the problem! • Rate of change of velocity is the definition of acceleration. • Strictly speaking, ...
Chapter 9
... The increase in rocket speed is proportional to the speed of the escape gases (ve) So, the exhaust speed should be very high The increase in rocket speed is also proportional to the natural log of the ratio Mi/Mf So, the ratio should be as high as possible, meaning the mass of the rocket should be ...
... The increase in rocket speed is proportional to the speed of the escape gases (ve) So, the exhaust speed should be very high The increase in rocket speed is also proportional to the natural log of the ratio Mi/Mf So, the ratio should be as high as possible, meaning the mass of the rocket should be ...
CIE IGCSE Forces
... State that a force may produce a change in size and shape of a body. Describe the ways in which a force may change the motion of a body. Find the resultant of two or more forces acting along the same line. Demonstrate an understanding that mass is a property which ‘resists’ change in motion. Inertia ...
... State that a force may produce a change in size and shape of a body. Describe the ways in which a force may change the motion of a body. Find the resultant of two or more forces acting along the same line. Demonstrate an understanding that mass is a property which ‘resists’ change in motion. Inertia ...
Monday, Dec. 1, 2003
... When the particle rotates at a uniform angular speed w, x and y coordinate position become Since the linear velocity in a uniform circular motion is Aw, the velocity components are Since the radial acceleration in a uniform circular motion is v2/A=w2A, the components are Monday, Dec. 1, 2003 ...
... When the particle rotates at a uniform angular speed w, x and y coordinate position become Since the linear velocity in a uniform circular motion is Aw, the velocity components are Since the radial acceleration in a uniform circular motion is v2/A=w2A, the components are Monday, Dec. 1, 2003 ...
Document
... b) The vector sum of all the external forces that act on the body must be zero. c) The linear momentum of the object must be zero. d) The vector sum of all the external torques acting on the body must be zero. e) All of the above are requirements of static equilibrium. ...
... b) The vector sum of all the external forces that act on the body must be zero. c) The linear momentum of the object must be zero. d) The vector sum of all the external torques acting on the body must be zero. e) All of the above are requirements of static equilibrium. ...
lectures 2015
... cancel before the last line. An exception to this rule arises where some terms are dimensionless factors which are simple fractions. 4. Check the dimensions Think about the dimensions of every quantity even as you write it down. You will find this a discipline which helps enormously to avoid errors ...
... cancel before the last line. An exception to this rule arises where some terms are dimensionless factors which are simple fractions. 4. Check the dimensions Think about the dimensions of every quantity even as you write it down. You will find this a discipline which helps enormously to avoid errors ...
PowerPoint Presentation - ABOUT TEAL
... Clearly define what is “inside” your system. Clearly define the initial and final conditions, which include the location and speed of all object(s) Think carefully about all forces acting on all objects All forces must be considered in the Work term or in the Potential Energy term, but never in ...
... Clearly define what is “inside” your system. Clearly define the initial and final conditions, which include the location and speed of all object(s) Think carefully about all forces acting on all objects All forces must be considered in the Work term or in the Potential Energy term, but never in ...
MODULE 5 STRUCTURAL DYNAMICS
... subjected to some action. This action can be in the form of load due to the weight of things such as people, furniture, wind, snow, etc. or some other kind of excitation such as an earthquake, shaking of the ground due to a blast nearby, etc. In essence all these loads are dynamic, including the sel ...
... subjected to some action. This action can be in the form of load due to the weight of things such as people, furniture, wind, snow, etc. or some other kind of excitation such as an earthquake, shaking of the ground due to a blast nearby, etc. In essence all these loads are dynamic, including the sel ...
Force
... each other out • Action-reaction forces are equal and opposite-so why does the swimmer move? Why don’t the forces result in a net force of zero? -The action and reaction forces act on different ...
... each other out • Action-reaction forces are equal and opposite-so why does the swimmer move? Why don’t the forces result in a net force of zero? -The action and reaction forces act on different ...
Supplementary exercise for Ch.1 to 4
... 29. KE does not change because net force is zero, the velocity does not change. Power in overcoming air resistance = air resistance x speed = mg x speed which is unchanged. 30. The horse’s foot push backward to move forward, thus the ground presses on the horse’s foot in forward direction. Friction ...
... 29. KE does not change because net force is zero, the velocity does not change. Power in overcoming air resistance = air resistance x speed = mg x speed which is unchanged. 30. The horse’s foot push backward to move forward, thus the ground presses on the horse’s foot in forward direction. Friction ...
Chapter 5 Work and Energy conclusion
... Collisions involve two new concepts: Impulse and Momentum. Impulse concept leads to the Momentum definition. Also applied to two (or more) masses blown apart by an explosion. ...
... Collisions involve two new concepts: Impulse and Momentum. Impulse concept leads to the Momentum definition. Also applied to two (or more) masses blown apart by an explosion. ...
Document
... The equations above show that the center of mass of a system of particles moves as though all the system's mass were concentrated there, and that the vector sum of all the external forces were applied there. A dramatic example is given in the figure. In a fireworks display a rocket is launched and m ...
... The equations above show that the center of mass of a system of particles moves as though all the system's mass were concentrated there, and that the vector sum of all the external forces were applied there. A dramatic example is given in the figure. In a fireworks display a rocket is launched and m ...
ENG2000 Chapter 2 Structure of Materials
... • When the truss exceeds a certain size, the method of joints becomes unnecessarily tedious • If the joints are in equilibrium, so too is the truss as a whole • Hence, we can also split it into two equilibrium ...
... • When the truss exceeds a certain size, the method of joints becomes unnecessarily tedious • If the joints are in equilibrium, so too is the truss as a whole • Hence, we can also split it into two equilibrium ...
Mass - Effingham County Schools
... Imagine a ball of a certain mass moving at a certain acceleration. This ball has a certain force. Now imagine we make the ball twice as big (double the mass) but keep the acceleration constant. F = ma says that this new ball has twice the force of the old ball. Now imagine the original ball moving a ...
... Imagine a ball of a certain mass moving at a certain acceleration. This ball has a certain force. Now imagine we make the ball twice as big (double the mass) but keep the acceleration constant. F = ma says that this new ball has twice the force of the old ball. Now imagine the original ball moving a ...
Chapter 4 Review
... 8. The force required to maintain an object at a constant speed in free space is equal to _____. a. zero b. the mass of the object c. the weight of the object d. the force required to stop it e. none of the above 9. An object following a straight line path at constant speed _____. a. has a net force ...
... 8. The force required to maintain an object at a constant speed in free space is equal to _____. a. zero b. the mass of the object c. the weight of the object d. the force required to stop it e. none of the above 9. An object following a straight line path at constant speed _____. a. has a net force ...