a car is moving with a velocity of 45m/hr. the driver presses brakes and the car comes to rest in 3 second. What is its retradion? How far does it move before coming to rest​

If 21.2 kcals of energy is released by this reaction, how many kj does the reaction release? (1 cal 4.184 j)

A1,700kg car is being used to give a 1,400kg car a push start by exerting a force of 140n the impulse on the smaller car during the 30.0s of contact is +670kg*m/s. what is the impulse of the smaller car on the larger car? -814 kg*m/s 0kg *m/s -670kg*m/s -550kg*m/s

Chemical energy is a form of energy. a. heat b. kinetic c. potential d. electromagnetic