Chapter 2
... • Every object continues in a state of rest, or in a state of motion in a straight line at constant speed, unless it is compelled to change that state by forces exerted upon it • In other words: With no force exerted on it, an object in motion remains in motion in a straight line, an object at rest ...
... • Every object continues in a state of rest, or in a state of motion in a straight line at constant speed, unless it is compelled to change that state by forces exerted upon it • In other words: With no force exerted on it, an object in motion remains in motion in a straight line, an object at rest ...
Motion & Forces
... continues to move forward at the same speed the car was traveling. Within about 0.02 s (1/50 of a second) after the car stops, unbelted passengers slam into the dashboard, steering wheel, windshield, or the backs of the front seats. The force needed to slow a person from 50 km/h to zero in 0.1 s is ...
... continues to move forward at the same speed the car was traveling. Within about 0.02 s (1/50 of a second) after the car stops, unbelted passengers slam into the dashboard, steering wheel, windshield, or the backs of the front seats. The force needed to slow a person from 50 km/h to zero in 0.1 s is ...
Newton`s 2nd Law Key - Northwest ISD Moodle
... When the scale reads 840 N, the net force on the student = 0, so velocity is constant. 4. A sign in an elevator states that the maximum occupancy is 20 persons. Suppose that the safety engineers assume the mass of the average rider is 75 kg. The elevator itself has a mass of 500 kg. The cable suppor ...
... When the scale reads 840 N, the net force on the student = 0, so velocity is constant. 4. A sign in an elevator states that the maximum occupancy is 20 persons. Suppose that the safety engineers assume the mass of the average rider is 75 kg. The elevator itself has a mass of 500 kg. The cable suppor ...
Ch6Lecture2
... 1) Side1: KE = 0, Total E = PE 2) Bottom: PE = 0, KE = Total E 3) Side2: KE = 0, Total E = PE F 4) Work to get this started, after that W = 0 a) Input E into the system b) ET = KE + PE = constant c) Sides: Initial Work gives us PE d) Bottom: Gravity moves bob down (KE) e) F = tension = centripetal f ...
... 1) Side1: KE = 0, Total E = PE 2) Bottom: PE = 0, KE = Total E 3) Side2: KE = 0, Total E = PE F 4) Work to get this started, after that W = 0 a) Input E into the system b) ET = KE + PE = constant c) Sides: Initial Work gives us PE d) Bottom: Gravity moves bob down (KE) e) F = tension = centripetal f ...
PHYS 1405 Sample Questions (1-4)
... As done in class, add the vectors in the force diagram shown below. Is the NetForce zero or non-zero? _____________ If the NetForce is not zero, draw the arrow representing its size and direction and label it “NetForce”. ...
... As done in class, add the vectors in the force diagram shown below. Is the NetForce zero or non-zero? _____________ If the NetForce is not zero, draw the arrow representing its size and direction and label it “NetForce”. ...
Newton`s 1st Law - HRSBSTAFF Home Page
... The bus is initially at rest, as is the package. In the absence of any force, the natural state of the package is to remain at rest. When the bus pulls forward, the package remains at rest because of its inertia (until the back of the seat applies a forward force to make it move with the bus). From ...
... The bus is initially at rest, as is the package. In the absence of any force, the natural state of the package is to remain at rest. When the bus pulls forward, the package remains at rest because of its inertia (until the back of the seat applies a forward force to make it move with the bus). From ...
Chapter 7 Force ppt
... An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless an unbalanced force acts upon it. ...
... An object at rest will remain at rest, and an object in motion will remain in motion at a constant velocity, unless an unbalanced force acts upon it. ...
Document
... I believe you said in the first lecture that there was no such thing as centripetal force. In previous physics courses I have learned that centrifugal force does not exist, but I thought that centripetal force did? Can you explain inertial references more as in Newton's first law? A girl in my dorm ...
... I believe you said in the first lecture that there was no such thing as centripetal force. In previous physics courses I have learned that centrifugal force does not exist, but I thought that centripetal force did? Can you explain inertial references more as in Newton's first law? A girl in my dorm ...
Forces
... FG or Fw The force that gravity exerts on an object is proportional to the object’s mass. • Specifically, FG=mg, – g is gravitational acceleration – g = -9.8 m/s2 on earth ...
... FG or Fw The force that gravity exerts on an object is proportional to the object’s mass. • Specifically, FG=mg, – g is gravitational acceleration – g = -9.8 m/s2 on earth ...
patterns of motion and equilibrium - SCIENCE
... always changing its direction. Therefore, its velocity is always changing, so it is accelerating. • The acceleration that occurs in circular motion is known as centripetal acceleration. ...
... always changing its direction. Therefore, its velocity is always changing, so it is accelerating. • The acceleration that occurs in circular motion is known as centripetal acceleration. ...
Uniform Circular Motion Ideas
... objects don’t tend to move in a circle by themselves. They tend to either be at rest of move in a straight line at constant speed (this is Newton’s first law) ...
... objects don’t tend to move in a circle by themselves. They tend to either be at rest of move in a straight line at constant speed (this is Newton’s first law) ...
Newton`s Laws Review
... 13. What 2 things can happen when an objects net force is equal to 0? It will be in equilibrium, meaning it will remain at rest or at a constant speed 14. What force opposes motion? FRICTION!!! Newton’s 2nd Law 15. What will determine how much an object accelerates? How much force is applied and the ...
... 13. What 2 things can happen when an objects net force is equal to 0? It will be in equilibrium, meaning it will remain at rest or at a constant speed 14. What force opposes motion? FRICTION!!! Newton’s 2nd Law 15. What will determine how much an object accelerates? How much force is applied and the ...
Newton`s Laws of Motion
... Newton’s Third Law of Motion • For every action, there is an equal and ...
... Newton’s Third Law of Motion • For every action, there is an equal and ...
PHYS 1443 – Section 501 Lecture #1
... Two objects exert gravitational force on each other following Newton’s 3rd law. ...
... Two objects exert gravitational force on each other following Newton’s 3rd law. ...
Jeopardy
... A 400 kg jet ski is racing along a constant 3 m/s East. Draw a force diagram, and label the forces on the jet-ski, considering the water pushes back on the jet-ski with a force of 2000 N. ...
... A 400 kg jet ski is racing along a constant 3 m/s East. Draw a force diagram, and label the forces on the jet-ski, considering the water pushes back on the jet-ski with a force of 2000 N. ...