Practice Clicker Questions: Momentum, Impulse, Work and Energy
... exerted on the dummy by the seat belt to bring it to rest in 0.5 s from about 50 mph. • The duration or amount of time of impact must be greater in order to reduce the force of impact! • If time of impact was doubled (1 s), then how much would the force be? ...
... exerted on the dummy by the seat belt to bring it to rest in 0.5 s from about 50 mph. • The duration or amount of time of impact must be greater in order to reduce the force of impact! • If time of impact was doubled (1 s), then how much would the force be? ...
mechanical energy
... Question 9 • A 4,000 kg satellite is traveling in a circular orbit 200 km above the surface of the earth. A 3.0 gram marble is dropped inside the satellite. What is the force of gravity on the marble as viewed by the observers on the earth? (Me = 5.98 x 1024 kg, Re = 6.37 x 106 m, G = 6.67 x 10-11 ...
... Question 9 • A 4,000 kg satellite is traveling in a circular orbit 200 km above the surface of the earth. A 3.0 gram marble is dropped inside the satellite. What is the force of gravity on the marble as viewed by the observers on the earth? (Me = 5.98 x 1024 kg, Re = 6.37 x 106 m, G = 6.67 x 10-11 ...
Force
... • Terminal velocity- the constant velocity of a falling object when the force of air resistance equals the force of gravity ...
... • Terminal velocity- the constant velocity of a falling object when the force of air resistance equals the force of gravity ...
2 Kinetic energy
... instead applied 16 N through 1 m, the work would still be 16 J. The acceleration would be 8 m S-' which at constant acceleration over l m gives, from v2 = 2ks, v = 4 m S-', the same speed as before. This is true even if the force is not constant. As long as the work is 16 J, for a 2 kg mass the spee ...
... instead applied 16 N through 1 m, the work would still be 16 J. The acceleration would be 8 m S-' which at constant acceleration over l m gives, from v2 = 2ks, v = 4 m S-', the same speed as before. This is true even if the force is not constant. As long as the work is 16 J, for a 2 kg mass the spee ...
Chapter 2 Lessons 1 - 3 slides
... A, B and C are three points that lie in that order on a straight road with AB = 95m and BC = 80m. A car is travelling along the road in the direction ABC with constant acceleration ‘a’ ms-2. The car passes through A with speed ‘u’ ms-1, reaches B 5 seconds later and C 2 seconds after that. Find u a ...
... A, B and C are three points that lie in that order on a straight road with AB = 95m and BC = 80m. A car is travelling along the road in the direction ABC with constant acceleration ‘a’ ms-2. The car passes through A with speed ‘u’ ms-1, reaches B 5 seconds later and C 2 seconds after that. Find u a ...
Ppt - AIS Moodle
... We usually think of acceleration as a change in speed. Because velocity includes both speed and direction, acceleration can also be a change in the direction of motion. ...
... We usually think of acceleration as a change in speed. Because velocity includes both speed and direction, acceleration can also be a change in the direction of motion. ...
PreAP Physics Extra Practice Unit 1: Uniform Motion and Graphing
... minimum time in which a 1500 kg car whose initial velocity is 26.8 m/s will stop. What distance will the car cover in this time? [t = 5.469 sec, ∆s = 73.290 m] 20. Choose the best answer: Kinetic friction: a. increases as the normal force increases b. is less than or equal to static friction c. is t ...
... minimum time in which a 1500 kg car whose initial velocity is 26.8 m/s will stop. What distance will the car cover in this time? [t = 5.469 sec, ∆s = 73.290 m] 20. Choose the best answer: Kinetic friction: a. increases as the normal force increases b. is less than or equal to static friction c. is t ...
SAMPLE TEST 1: PHYSICS 103
... magnitude 200 N. The elephant moves with a constant forward acceleration. Which statement is most true about the magnitude of the force of kinetic friction acting on the elephant? A. It is greater than 200 N B. It is less than 200 N C. It is equal to 200 N D. None of the above are necessarily true ...
... magnitude 200 N. The elephant moves with a constant forward acceleration. Which statement is most true about the magnitude of the force of kinetic friction acting on the elephant? A. It is greater than 200 N B. It is less than 200 N C. It is equal to 200 N D. None of the above are necessarily true ...
Tutorial_03_Newton2 - UMD Physics
... rope, the other end of which is then reeled in by a machine. The rope pulls the child straight upward at steady speed. The child weighs 250 newtons, which means gravity pulls him downward with 250 newtons of force. A. (Work together) In the box at the right, draw a diagram of this situation that you ...
... rope, the other end of which is then reeled in by a machine. The rope pulls the child straight upward at steady speed. The child weighs 250 newtons, which means gravity pulls him downward with 250 newtons of force. A. (Work together) In the box at the right, draw a diagram of this situation that you ...
4.3 Newton`s Second Law of Motion
... 2. A force that acts at a distance (not touching), such as gravity, the magnetic force, or the electric force. These are called field forces. They are invisible and were not discovered/understood until “modern” times – late 1800’s. © 2010 Pearson Education, Inc. ...
... 2. A force that acts at a distance (not touching), such as gravity, the magnetic force, or the electric force. These are called field forces. They are invisible and were not discovered/understood until “modern” times – late 1800’s. © 2010 Pearson Education, Inc. ...
Chapter 7 Impulse and Momentum
... Hailstones Versus Raindrops Unlike rain, hail usually does not come to rest after striking a surface. Instead, the hailstones bounce off the roof of the car. If hail fell instead of rain, would the force on the roof be smaller than, equal to, or greater? ...
... Hailstones Versus Raindrops Unlike rain, hail usually does not come to rest after striking a surface. Instead, the hailstones bounce off the roof of the car. If hail fell instead of rain, would the force on the roof be smaller than, equal to, or greater? ...