Question

Work, Power & Energy 59 13. A small block of mass m is lying at rest at point P of a wedge having a smooth semi circular track of radius R. The minimum value of horizontal acceleration a, (in m/s) of wedge so that mass can just reach the point Q, is of​

Answer 1

Answer:

2

1

mu

2

=mgR

⇒u

2

=2Rg

⇒v

2

=u

2

+2as

⇒u

2

=2aR

⇒a=

2R

2Rg

⇒a

0

=g.

Hence, the answer is g.