In the figure, a block of weight 60 N is placed on a rough surface. The coefficient of friction between the block and the surfaces is 0.5. What should be the weight W such that the block does not slip on the surface?

see full answer

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!

An Intiative by Sri Chaitanya

60 N

602N

30 N

302N

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Frictional force: f= μN = 0.5×mg = 0.5×60 = 30 NNow F = T1= T2cos 450or 30 = T2 cos 450and W = T2 sin 450Solving them we get W = 30 N

Watch 3-min video & get full concept clarity