Question

A motor of one HP runs at 600rpm.The work done by motor in one rotation is

Answer 1

Answer:

The work done by motor in 1 rotation is 1.24 J

Explanation:

Power of the motor = 1 HP = 746 W

No. of revolutions $N=600$ rpm

The angular speed of the motor

$\omega=2\pi N$

$\omega=2\times \pi\times 600$

$\implies \omega=1200\pi$ rad/s

Torque provided by the motor

$\tau=\frac{P}{\omega}$

$\tau=\frac{746}{1200\pi}$ N-m

Therefore, the work done by motor in one rotation

$W=\tau\times 2\pi\times 1$

$\implies W=\frac{746}{1200\pi}\times 2\pi$

$\implies W=\frac{746}{600}$

$\imples W=1.24$ J

Hope this answer is helpful.