a uniform rod of mass m and length l is pivoted. the rod is initially in vertical position and touching a block of mass M which is at rest on horizontal surface. the rod is given a slight jerk and it starts rotating about pivoted point. this causes the block to move forward. the rod loses contact with the block at 30 degrees.
1. the value of M/m?
2. the velocity of block when the rod loses contact with the block?
3. the acc. of com of rod, when it loses contact with the block?

4. the hinge reaction at pivoted point on the rod when it loses contact with the block?


answers.. a) 4:3
b)[(3gl)^1/2]/4
c) 3g/4

d)(mg/4)j

surbhi pathak

13 Years agoGrade 12th Pass