A force acts on a body and displaces it by a distance S in a direction at an angle \theta with the direction of force. What should be the value of \theta to get the maximum positive work?

ICSE Class 10 Physics 2018 Solved Paper - Question 39

Question : 39 of 78

Marks: +1, -0

A force acts on a body and displaces it by a distance

S

in a direction at an angle

θ

with the direction of force. What should be the value of

θ

to get the maximum positive work?

Solution:

We know,

{\W}= {\FS} \cos θ

Thus, the value of

θ

to get the maximum positive work should be

0^{∘}

.
As

\cos 0^{∘}=+1

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