1.

A smooth sphere of mass m is moving on a horizontal plane with a velocity 3hat(i) + hat(j) when t collides with a vertical wall which is parallel to the vector hat(j). If the coefficiet of restitution between the sphere and the wall is 1/4 The impulse hat(j) that acts on the sphere is

Answer»

`(9M)/(2) HAT(i)`
`(3M)/(2) hat(i)`
`-(3m)/(2) hat(i)`
`-(9m)/(2) hat(i)`

ANSWER :D


Discussion

No Comment Found