The cheetah is the fastest land animal, reaching speeds as high as 33 m/s, or roughly 75 mph. what is the kinetic energy of a 65 kg cheetah running at top speed? express your answer in si units.

Need in all of themmm only answer if you know plsssss

What is the acceleration of a spaceship that is initially at rest and then speeds up to 220 m/s in 20 seconds

The man of mass m1 and the woman of mass m2 are standing on opposite ends of the platform of mass m0 which moves with negligible friction and is initially at rest with s = 0. the man and woman begin to approach each other. derive an expression for the displacement s of the platform when the two meet in terms of the displacement x1 of the man relative to the platform.