An object with a mass of 4 kg travels 15 meters in 3 seconds. What is the objects kinetic energy? ? ( Use V - to find the velocity)

Aball is thrown upward in the air, and its height above the ground after t seconds is h ( t ) = 57 t − 16 t 2 feet. find the time t when the ball will be traveling upward at 14.25 feet per second.

Apulley with a mechanical advantage of 5 will require you to pull times the amount of rope. a. 1/5 b. 5 c. 10 d. 15

Aforce is a vector quantity because it has both?