Work Energy And Power Question 217
Question: A body moves a distance of 10 m along a straight line under the action of a force of 5 newtons. If the work done is 25 joules, the angle which the force makes with the direction of motion of body is
Options:
A) $ 0{}^\circ $
B) $ 30{}^\circ $
C) $ 60{}^\circ $
D) $ 90{}^\circ $
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ W=Fscos\theta ,cos\theta =\frac{W}{Fs}=\frac{25}{5\times 10}=\frac{1}{2} $
$ \theta =60{}^\circ . $
