Question

10. A block of mass 20 kg is kept on rough incline
plane. If angle of repose is 30°, then what should
be value of Fext so that the block does not move
over incline plane?
Fox
120 kg
Jo = 60°
(1) 120 N
(3) 110 N
(2) 210 N
(4) Both (1) & (2)​

Answer 1

Answer:

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