University of KwaZulu-Natal Pietermaritzburg
... For the motion in the vertical direction we use s = ut + 21 at2 with s = 0 (since the liquid is projected over level ground). Hence 0 = u cos 45◦ + 21 (−9, 8) t. Solving these equations, we obtain u = 70 ms−1 . (b) Considering the motion in a vertical direction, we can calculate the time from s = ut ...
... For the motion in the vertical direction we use s = ut + 21 at2 with s = 0 (since the liquid is projected over level ground). Hence 0 = u cos 45◦ + 21 (−9, 8) t. Solving these equations, we obtain u = 70 ms−1 . (b) Considering the motion in a vertical direction, we can calculate the time from s = ut ...
Lecture2_Freefall
... bullet shot out of a gun, straight down. Neglecting air resistance, which has the greater acceleration just before hitting the ground? A) the ball B) the bullet C) both have the same acceleration The acceleration of gravity does not depend on the mass or the speed of the object in free fall! ...
... bullet shot out of a gun, straight down. Neglecting air resistance, which has the greater acceleration just before hitting the ground? A) the ball B) the bullet C) both have the same acceleration The acceleration of gravity does not depend on the mass or the speed of the object in free fall! ...
review game
... color button to move their car. 3.Seven correct answers will cross the finish line and win the race. ...
... color button to move their car. 3.Seven correct answers will cross the finish line and win the race. ...
Forces And Motion - Marlington Local Schools
... Gravity and Falling Objects • Gravity causes objects to accelerate downward • Air resistance (fluid friction) acts in the direction opposite to the motion and reduces acceleration ...
... Gravity and Falling Objects • Gravity causes objects to accelerate downward • Air resistance (fluid friction) acts in the direction opposite to the motion and reduces acceleration ...
17.4 Inertia and Newton`s 1st law of motion
... slow it down, or speed it up, or make it change direction. Sir Isaac Newton was one of the first and greatest physicists (Module 1.9). Newton’s first law of motion states that an object at rest will stay at rest, and a moving object will continue to move with uniform velocity, unless an external for ...
... slow it down, or speed it up, or make it change direction. Sir Isaac Newton was one of the first and greatest physicists (Module 1.9). Newton’s first law of motion states that an object at rest will stay at rest, and a moving object will continue to move with uniform velocity, unless an external for ...
A Newton pair of forces
... Newton’s laws of motion Newton’s first law of motion A body remains at rest or in a state of uniform motion unless acted on by a resultant force. The resultant force on a body is the vector sum of all the forces acting on that body. Resultant force on a body = F ...
... Newton’s laws of motion Newton’s first law of motion A body remains at rest or in a state of uniform motion unless acted on by a resultant force. The resultant force on a body is the vector sum of all the forces acting on that body. Resultant force on a body = F ...
Vectors and Scalars - The Physics Teacher
... Chapter 8: Vectors and Scalars Please remember to photocopy 4 pages onto one sheet by going A3→A4 and using back to back on the photocopier It actually makes more sense to do this chapter after chapter 9, because most exam questions combine the two topics. A Scalar Quantity is one which has magnitud ...
... Chapter 8: Vectors and Scalars Please remember to photocopy 4 pages onto one sheet by going A3→A4 and using back to back on the photocopier It actually makes more sense to do this chapter after chapter 9, because most exam questions combine the two topics. A Scalar Quantity is one which has magnitud ...
Newton`s Laws of Motion - CEC
... Acceleration ~ net force/mass We use the wiggly line as a symbol meaning “is proportional to.” We say that acceleration (a) is directly proportional to the overall net force (F) and inversely proportional to the mass (m). By this we mean that, if F increases, a increases by the same factor (if F dou ...
... Acceleration ~ net force/mass We use the wiggly line as a symbol meaning “is proportional to.” We say that acceleration (a) is directly proportional to the overall net force (F) and inversely proportional to the mass (m). By this we mean that, if F increases, a increases by the same factor (if F dou ...
biomechanics hw sol
... F1y = 300.sin(-30)= 300(-.5) = -150 N (negative sign indicates that this component is directed downward) For equilibrium, taking a moment about the hinge and setting it to zero, Fc*0.2 – 20(0.5) – 150*1 = 0, or Fc = 160/0.2 = 800 N Note that F1x , Fx and Fy are all passing through the hinge, so not ...
... F1y = 300.sin(-30)= 300(-.5) = -150 N (negative sign indicates that this component is directed downward) For equilibrium, taking a moment about the hinge and setting it to zero, Fc*0.2 – 20(0.5) – 150*1 = 0, or Fc = 160/0.2 = 800 N Note that F1x , Fx and Fy are all passing through the hinge, so not ...
01 - Fairfield Public Schools
... exerted by the ball on Earth? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ...
... exerted by the ball on Earth? _______________________________________________________________ _______________________________________________________________ _______________________________________________________________ ...
Homework #3 - cloudfront.net
... (b) The acceleration is in the same direction as FR and has magnitude a ...
... (b) The acceleration is in the same direction as FR and has magnitude a ...