Iput this question up already for a bunch of points but someone just wrote gibberish to get the points and no one actually me. if someone could actually me solve this problem it would be much appreciated. (confused about the sig figs and units). sm

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: