Kevin, whose mass is 80 kg, is moving along at a velocity of 4 m/s. he doubles his velocity by going down a hill. how much kinetic energy does he have after going down the hill?
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In physics the desire of an object to keep doing what it is doing is termed?

(01.02 mc) nicole pushes her bike up a hill. overhead, the sun exerts a gravitational force on earth. which statement is true about the bike and earth? they both experience contact forces. they both experience non-contact forces. the bike experiences a non-contact force and earth experiences a contact force. the bike experiences a contact force and earth experiences a non-contact force. they both experience non-contact forces.

What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.