Question

A crane is lifting a 500 lb car. If the power output of the crane is 1.82 hp, find the velocity of the car.

Answer 1

Given:

Mass of car, m = 500 lb = 500 × 0.4536 = 226.8 kg

Power output of crane, P = 1.82 hp = 1.82 × 746 = 1357.72 W

To Find:

The velocity of the car.

Calculation:

- The Power can be given by the formula:

P = F × v

⇒ v = P/F

⇒ v = P/mg

⇒ v = 1357.72/(226.8 × 9.8)

⇒ v = 1357.72/2222.64

⇒ v = 0.61 m/s

- So, the velocity of the car will be 0.61 m/s.

Answer 2

Answer:

Explanation:

V=0.61