a 4800 lbs elevator starts from rest and is pulled upward with a constant acceleration of 10 ft/sec^2. (a)find the tension in the supporting cable. (b)what is the velocity of the elevator after it has risen 45 ft.? (c)find the kinetic energy of the elevator 3 sec. after it starts.(d) how much is its potential energy increase in the first 3 sec.? (e)what horse power is required when the elevator is raveling 22 ft/sec?

Question

alekos · Answer

Force or tension on the cable would be  m(a +g)  where m is the mass of the elevator, a is the acceleration of the motor, and g is the acceleration due to gravity

anonymous · Answer

then?

alekos · Answer

I cant do everything for you. plug in the values for part a