A motor pulls up a block suspended on a string, so that the tension in the string is equal to the qeight force on the block. the block has mass m, the distance raised is h and the power output of the motor is P. what is the magnitude of the acceleration of the block?

Which pair of quantities includes one quantity that increases as the other decreases during simple harmonic motion?

Ben (55kg) is standing on very slippery ice when junior (25kg) bumps into him. junior was moving at a speed of 8 m/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. give the answer in m/s. describe the work you did to get the answer.

Ahot-air balloon is 11.0 m above the ground and rising at a speed of 7.00 m/s. a ball is thrown horizontally from the balloon basket at a speed of 9.00 m/s. ignore friction and air resistance and find the speed of the ball when it strikes the ground.