An elevator has a mass of 1000kg.
What is the tension force on its cables when it is stationary?
when it is stationary, the total upward force is equal to the total downward force.
in this case, the downward force is the weight of the elevator, and the force which is supporting this elevator is called tension in the cables.
weight of the elevator = 1000 kg * 9.8 m/s^2 = 9800 N
so, the tension in the cables must be 9800 N.
hope this clears you.
f=ma f=? m=1000 kg
a= 9.80(due to gravity) f= 1000*9.80=9800