Question

A jeep carries a trailer of the level road at constant speed of 10 M per second calculate the power exerted on the trailer if the tension in the coupling is 2000 Newton?

Answer 1

power =tension force *velocity
2000 *10= 20000

Answer 2

The power exerted on the trailer is 20 kW.

Explanation:

Given that,

The tension in the jeep, F = 2000 N

Speed of jeep, v = 10 m/s

To find,

The power exerted on the trailer.

Solution,

The energy per unit time is called power exerted on the trailer. It is given by :

$P=\dfrac{W}{t}$

W = F.d

So, $P=F\times v$

$P=2000\ N\times 10\ m/s$

$P=20\ kW$

So, the power exerted on the trailer is 20 kW.

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