The angle between force and displacement is 2Q. For what value of Q is work done zero.
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Answered by
6
Answer:
(2n+1)π/4
Explanation:
W=FSCos(theta)
for W=0
cos(theta) must be equal to 0
cos(2Q)=0
general solution is 2Q=(2n+1)π/2
Q= (2n+1)π/4
Q=45,135...
Answered by
5
option c is correct 45degree
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