Home
Class 11
PHYSICS
A small block of mass M moves on a frict...

A small block of mass M moves on a frictionless surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from `60^@ "to" 30^@` at point B. The block is initially at rest at A. Assume that collisions between the block and the incline are totally inelastic

If collision between the block and the incline is completely elastic, then the vertical (upward) component of the velocity of the block at point B, immediately after it strikes the second incline is: ..

A

`sqrt(30) ms^(-1)`

B

`sqrt(15) ms^(-1)`

C

0

D

`-sqrt(15) ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

A small block of mass M move on a frictionless surface of an inclimed from as down is figure . The engle of the inclime suddenly change from 60^(@) to 30^(@) at point B . The block is initally at rest at A Assume the collsion between the block and the incline are totally inclassic (g = 10m//s^(2) ) If collision between the block and the incline is completely elestic , then the vartical (apward) component of the of the block at point B immediatly after it stricess the scond indine is -

A small block of mass M moves on a frictionless surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from 60^(@) to 30^(@) at point B . The block is many at rest at A . Assume that collisions between the block id the incline are totally inelastic. The speed of the block at point B immediately after it strikes the second incline is

A small block of mass M moves on a frictionless surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from 60^(@) to 30^(@) at point B . The block is many at rest at A . Assume that collisions between the block id the incline are totally inelastic. The speed of the block at point C , immediately before it leaves the second incline

A small block of mass M moves on a friction-less surface of an inclined plane, as shown in the figure. The angle of the incline suddenly changes from 60^(@) to 30^(@) at point B . The block is initially at rest at A . If collision between the block and the incline is completely elastic, then the vertical (upward) component of the velocity of the blocks at point B , immediately after it strikes the second incline is

Two blocks each of mass M are resting on a frictionless inclined plane as shown in fig then:

A block of mass 'm' is released on the top of a frictionless incline as shown in the figure. The time period of the oscillation of the block is

A block of 10 kg mass is placed on a rough inclined surface as shown in figure. The acceleration of the block will be

A block of mass 3kg is at rest on a rough inclined plan as shown in the Figure. The magnitude of net force exerted by the surface on the block will be

A block of mass m is kept on an inclined plane is angle inclination theta ( lt phi), where phi= angle of friction. Then :

A block of mass m is at rest on a rough inclined plane of angle of inclination theta . If coefficient of friction between the block and the inclined plane is mu , then the minimum value of force along the plane required to move the block on the plane is