Question

A motor lets a 450.N crate drop at a constant 5.75m/s. What is the power output of the motor?

A motor lets a 450.N crate drop at a constant 5.75m/s. What is the power output of the motor?

78.3W

2590W

444W

456W

Answer 1

Power is the energy per unit time required to run a machine. The output power of the motor is 2590 W.

What is power?

Power is the product of force and velocity with which an object is moving.

P = F x v

Given is the force 450N and the velocity is 5.675 m/s, then the power is

P = 450 x 5.75

P = 2587.5 Watt

The power output of the motor is approximately 2590 W.

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