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>>Work, Energy and Power
>>Introduction to Work
>> $A rigid body moves a distance of 10m alo$

Question

A rigid body moves a distance of 10m along a straight line under the action of a force of 5 N. lf the work done by this force on the body is 25 joules, the angle which the force makes with the direction of motion of the body is

A

$0^{\circ}$

B

$3 0^{\circ}$

C

$6 0^{\circ}$

D

$9 0^{\circ}$

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Updated on : 2022-09-05

Solution

Verified by Toppr

Correct option is C)

we know,
$W = F S c o s θ$
$c o s θ = \frac{W}{F S}$

$c o s θ = \frac{2 5}{5 0}$

$c o s θ = \frac{1}{2}$

$θ = c o s^{- 1} 0.5$
$θ = 6 0^{0}$

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