A force of $10 N$ moves a body with a constant speed of $2 m s^{- 1}$ . Calculate the power of the body.

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Solution

Given Force $F = 10 N$ and velocity $v = 2 m / s$

Power, $P = \frac{Work done}{T i m e}$

Also we know, work done $W = F \times s$ where s= displacement & velocity, $v = \frac{s}{t}$

Thus, power, $P = \frac{F \times s}{t} = F \times v$

$P = 10 \times 2 = 20 W$

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A force of 10N moves a body with a constant speed of 2ms−1. Calculate the power of the body.

Given Force F=10N and velocity v=2m/sPower, P=Work doneTimeAlso we know, work done W=F×s where s= displacement & velocity, v=stThus, power, P=F×st=F×vP=10×2=20 W

A force of $10 N$ moves a body with a constant speed of $2 m s^{- 1}$ . Calculate the power of the body.

Given Force $F = 10 N$ and velocity $v = 2 m / s$

Power, $P = \frac{Work done}{T i m e}$

Also we know, work done $W = F \times s$ where s= displacement & velocity, $v = \frac{s}{t}$

Thus, power, $P = \frac{F \times s}{t} = F \times v$

$P = 10 \times 2 = 20 W$