1. The problem statement, all variables and given/known data A 500 kg elevator starts from rest. It moves upward for 3.50 s with constant acceleration until it reaches its cruising speed, 1.75 m/s. (a) What is the average power of the elevator motor during this period? (b) How does this power compare with the motor power when the elevator moves at its cruising speed? Pcruising = ? 2. Relevant equations F=ma P=W/deltaT W=Fdelta(r)cos(theta) 3. The attempt at a solution This problem, I first found the acceleration using Vf= Vi +at a= 0.5m/s^2 Next I plugged this into delta x = Vot +1/2a(t^2) and found delta x to be 3.0625 Next, I solved for tension using: T-Mg = Ma T= M(a+g) = 10,578.75 W Is this correct? If it isn't, can someone explain to me how to approach this problem?