Shaggy and Scooby had a race to see who could climb the stairs fastest. Shaggy climbed 20 feet in 44 seconds. Scooby climbed 20 feet in 37 seconds. How many watts of power did each of them have? Shaggy and Scooby both weigh the same. ( 1joule/sec=1 ) Show your work! please help!! will mark brainlessly

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: