Acar of mass m accelerates from rest along a level straight track, not at constant acceleration but with constant engine power, p . assume that air resistance is negligible. a) find the cars velocity as a function of time, in terms of p , t , and m

Amachinist turns the power on to a grinding wheel, at rest, at time t = 0 s. the wheel accelerates uniformly for 10 s and reaches the operating angular velocity of 96 rad/s. the wheel is run at that angular velocity for 40 s and then power is shut off. the wheel slows down uniformly at 1.5 rad/s2 until the wheel stops. in this situation, the time interval of deceleration is closest to: