A ball of mass 1 kg moving with velocity `vecv = 3hati + 4 hatj` collides with a wall and after collision velocity of the ball is `-2 hati + 6 hatj` . Which of the following unit vectors is perpendicular to wall?

A ball A moving with momentum 2hati + 4hatj collides with identical ball B moving with momentum 6hatj . After collision momentum of ball B is 10 hatj . Which of the following statement is correct?

A ball A moving with momentum 2hati + 4hatj collides with identical ball B moving with momentum 6hatj . After collision momentum of ball B is 10 hatj . Which of the following statement is correct?

A small sphere of mass m =2kg moving with a velocity baru = 4hati - 7hatj m//s colides with a smooth wall and returns with a velocity barv = -hati + 3hatj m//s . The magnitude of the impulse received by the ball is .

A particle of mass m moving with a velocity (3hati+2hatj)ms^-1 collides with another body of mass M and finally moves with velocity (-2hati+hatj)ms^-1 . Then during the collision

A particle of mass m moving with a velocity (3hati+2hatj)ms^-1 collides with another body of mass M and finally moves with velocity (-2hati+hatj)ms^-1 . Then during the collision

a_1 hati+a_2hatj is a unit vector perpendicular to 4hati-3hatj if

p_1 hati+p_2hatj is a unit vector perpendicular to 4hati-3hatj if

A ball of mass m moving with velocity vecu = u_(x) hati + u_(y) hatj hits a vertical wall of infinite mass as shown in the figure. The ball slips up along the wall for the duration of collision and there is friction between the ball and the wall. Neglect the effect of gravity. Pick up the correct alternative.

A small sphere of mass 1kg is moving with a velocity (6hati+hatj)m//s . It hits a fixed smooth wall and rebounds with velocity (4hati+hatj)m//s . The coefficient of restitution between the sphere and the wall is

A small sphere of mass 1kg is moving with a velocity (6hati+hatj)m//s . It hits a fixed smooth wall and rebounds with velocity (4hati+hatj)m//s . The coefficient of restitution between the sphere and the wall is