An old car is traveling down a long, straight road at 25.0 m/s when the driver applies the brakes, stopping the car WITHOUT skidding. The car comes to a complete stop after traveling 106 m in a straight line. What is the
coefficient of static friction between the tires and the road?

Aplayground slide is 8.80 ft long and makes an angle of 25.0° with the horizontal. a 63.0-kg child, initially at the top, slides all the way down to the bottom of the slide. (a) choosing the bottom of the slide as the reference configuration, what is the system's potential energy when the child is at the top and at the bottom of the slide? what is the change in potential energy as the child slides from the top to the bottom of the slide? (include the sign of the value in your answer.)