A ball is projected with velocityd of 20sqrt(2) m/s at an angle of 45^(@) with horizontal and at the same instant another plate is rotating with constant angular velocity omega=(pi)/(4) rad/sec in vertical plane as shown in the figure ( assume the length of plate is sufficient for collision to take place). If the mass of the plate is much larger than the mass of the ball, the plate is initially in horizontal position and collisionis perfectly elastic, then choose the correct statement (s)

A ball is projected with velocityd of 20sqrt(2) m/s at an angle of 45^

1.	A ball is projected with velocityd of 20sqrt(2) m/s at an angle of 45^(@) with horizontal and at the same instant another plate is rotating with constant angular velocity omega=(pi)/(4) rad/sec in vertical plane as shown in the figure ( assume the length of plate is sufficient for collision to take place). If the mass of the plate is much larger than the mass of the ball, the plate is initially in horizontal position and collisionis perfectly elastic, then choose the correct statement (s)
Answer» Time when the ball collides with the plate is 2 (SI unit) velocity of the ball just after collision with the plate is `10(2+pi)`(SI unit) Distance of ball when it again collides on the ground surface from the projection point is `20PI`(SI unit) Maximum height ACHIEVED by the ball is 20 (SI unit) Answer :A::B::C::D