Question

if a man displaces a box to a distance of 8 meter in 6 secend by applying a force of 15 N ,then calculate power​

Answer 1

Answer:

The power = 20 watt

Explanation:

work done by the person= FS=8×15= 120J

Power= work done/time taken= 120/6 = 20 watt

Answer 2

Given:

Displacement $=8m$

Time $=6s$

Force $=15N$

To find:

The power.

Solution:

• Power is given as the rate of doing work or the work done per unit time.

          Mathematically,              $P=\frac{W}{t}$

• Work done is the force applied on a body that results in some displacement of the body in the direction of the motion.

          Mathematically,               $W=F.s$

Hence,

$P=\frac{F.s}{t}$

According to the question, we have the values for

$F=15N$      $;$ $s=8m$       $;$ $t=6s$

Therefore the power becomes

$P=\frac{15*8}{6}$

$P=20J/s$

Final answer:

Hence, the power required to move the box to a certain distance will be 20 Watt.