pulley system is attached to a massless board as shown below. The board pivots only at the pivot point. A 10 kg mass M sits exactly in the middle of the board
If the angle θ is 30º, the minimum force F necessary to lift the 10 kg mass is –
Text Solution
Verified by ExpertsThe correct answer is:
B
Tension in string is F
Mg 
= 2FL
F = 
= 25 N
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