Question

A crane is lifting a 60 kg load at a constant velocity. Determine the tension force in the cable.

Answer 1

Answer:

The tension force of the cable is 588 N

Explanation:

Net Force

The Second Newton's law establishes that the acceleration an object has depends on the net force through the equation:

F = m.a

If the net force is zero, then the acceleration is zero, and the object's velocity remains constant.

The crane lifts a 60 Kg load at a constant velocity. It means the net force acting on the load is zero.

There are two forces acting on the load: The weight of the load and the tension of the cable that holds it.

Since the net force is zero, both forces have the same magnitude:

$T = m.g = 60\ kg\cdot 9.8\ m/s^2$

T=588 N

The tension force of the cable is 588 N