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CBSE Class 9 Answered

50 N of force is applied on an object through 5m at an angle of 75°,the body displaces 10 m.Calculate the work done.Give reasons for your answer....
Asked by pahiroy1221 | 17 Jan, 2016, 03:34: PM
answered-by-expert Expert Answer
In the given case, work is done only when force is applied on the object to move the object to 5m.
Thus, F = 50N, s = 5 m and Θ = 75º
Work done = Force × Displacement
or W = FscosΘ
W = 50N × 5 m × cos75º
    = 230.43 J
Answered by Yashvanti Jain | 18 Jan, 2016, 12:05: PM

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