First slide

Power

Question

The power (P) of an engine lifting a mass of 100 kg up to a height of 10m in 1 min is [J&K CET 2013)

Moderate

A

163.3 W
B

9800 W
C

10000 W
D

5000 W

Solution

$Power = \frac{Work done}{Time}$
Work done $= m g h = 100 \times 9.8 \times 10$
Time = 1 min = 60 s
$∴ P = \frac{100 \times 9.8 \times 10}{60} = 163.3 W$

Get Instant Solutions

When in doubt download our app. Now available Google Play Store- Doubts App

Recieve an sms with download link

Doubts App

OR

SCAN ME

Doubts App

Doubts App