A 25kg chair initially at rest on a horizontal floor requires a 165 n horizontal force to set it in motion. Once the chair is in motion , a 1227 n horizntal force keeps it moving at a constant velocity. a. find the coefficient of static friction between the chair and the floor.
b. find the coefficient of kinetic friction between the chair and the fllor

Apossible explanation for a set of facts that can be tested by further investigation is called

Will give brainliest! jay rides his 2.0-kg skateboard. he is moving at speed 5.8 m/s when he pushes off the board and continues to move forward in the air at 5.4 m/s. the board now goes forward at 13 m/s.a. determine jay’s mass.b. determine the change in the internal energy of the system during this process.(express your answer to two significant figures and include the appropriate units.)

Explain how the energy of rubber ball is tranforned as it roll down a ramp. give evidence that the energy of the og the ball remains the same at all points on the ramp