A child slides down a snow covered slope that makes an angleof 20 degrees with the horizontal. If the coefficient of kineticfriction is .085, what is the child's acceleration? At whatangle would the child slide with constant speed?
A 1400 kg car enters a passing zone and accelerates from70km/h to 95 km/h to pass a slower car. How much work must be done on the car? If the car then brakes to a stop, how much work is doneon it?