On a frictionless tabletop, a force is applied to an object: the object's velocity is horizontal and the force is perpendicular to the tabletop. which of the following is true?
1. the total energy of the object does not change.
2. the applied force is friction.
3. 44 the force does work on the object.
4. there cannot be more than one force on the object.
Answers: 3
Physics, 21.06.2019 19:00, akbogg3893
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Answers: 2
Physics, 21.06.2019 19:30, queenpaige2015
Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .
Answers: 2
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Arocket starts from rest and moves upward from the surface of the earth. for the first 10.0 s of its motion, the vertical acceleration of the rocket is given by ay = 12.80 m/s32t, where the +y-direction is upward. (a) what is the height of the rocket above the surface of the earth at t = 10.0 s? b) what is the speed of the rocket when it is 325 m above the surface of the earth?
Answers: 3
On a frictionless tabletop, a force is applied to an object: the object's velocity is horizontal an...
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