An elevator is rising at constand spee

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Reference no: EM13658709

An elevator is rising at constand speed. Consider the subsequent statements:

I. The upward cable force is constant

II. The kinetic energy of the elevator is constant

III. The gravitational potential energy of the Earth-elevator system is constant

IV. The acceleration of the elevator is zero

V. The mechanical energy of the earth-elevator system is constant

A) all five are true

B) only II and V are true

C) only IV and V are true

D) only I,II, III are true

E) only I,II, and IV are true

Reference no: EM13658709

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