A 0.45 kg soccer ball is kicked. The change in momentum of the ball from rest is 23.6 kg. m/s. What is the impulse?
52.44 N. S
0.45 N. S
10.62 N. s
23.6 N. S
(Please answer!!)

Identify the forces that contribute to the centripetal force on the object in each of the following examples: a. a bicyclist moving around a flat, circular track b. a bicycle moving around a flat, circular track c. a racecar turning a corner on a steeply banked curve

Ain is , is 's of ? 0.62 0.79 1.27 1.50

Complete these sentences. if a roller coaster train has a potential energy of 1,500 j and a kinetic energy of 500 j as it starts to travel downhill, its total energy isj. once the roller coaster train gets closer to the bottom of the hill, its kinetic energy increases to 1,100 j, and its potential energy decreases to j. when the train reaches the bottom of the track and is traveling along the ground, its kinetic energy isj.