Question

An elevator moves upward while increasing speed. Which of the following statements comparing the force of the cable on the elevator T and the weight of the elevator W is correct?

Answer 1

See below

Step-by-step explanation:

Downward force = weight = mg where g = accel of gravity 9.81 m/s ^2

the tension force acting UPWARD to cause the elevator to accelerate upward is F = T=m(a+g) where ' a ' is the UPWARD acceleration ...the tension must be equal to

the weight of the object + mass of object* acceleration

Answer 2

Answer: F=T-W.

Explanation- T and W are inversely related on the elevators y-axis, T pointing up and W (mass of object multiplied by gravity) pointing down. When T+W=0, the object would not be moving. Since the elevator is moving up, T must be a larger force since it neglects W and moves up. Therefore F=T-W