# A particle of mass  comes down on a smooth inclined plane from point  at a height of  from rest. The magnitude of change in momentum of the particle between position  ( just before arriving on horizontal surface)and  (assuming the angle of inclination of the plane as  with respect to the horizontal) is a) 0 b) 2 c) d)

## Question ID - 100120 :- A particle of mass  comes down on a smooth inclined plane from point  at a height of  from rest. The magnitude of change in momentum of the particle between position  ( just before arriving on horizontal surface)and  (assuming the angle of inclination of the plane as  with respect to the horizontal) is a) 0 b) 2 c) d)

3537

(c)

The velocity of the particle when it reaches point  from  is

(directed along )

(i)

(ii)

When the particle reaches point  the momentum is as shown in fig

(iii)

(iv)

Therefore

(v)

Magnitude of change in momentum is

Next Question :

There is a (number/letter) series in the following question with an item missing, marked with the question mark(?).  Find the best appropriate option from the given options.

 0, 6, 24, 60, 120, 210, (?) (a) 290 (b) 336 (c) 504 (d) 240