Home
Class 12
PHYSICS
A ball is projected with velocityd of 20...

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 collision is perfectly elastic, then choose the correct statement (s)

A

Time when the ball collides with the place is 2 (St unit)

B

Velocity of the ball just after collision with the plate is `10(2+pi)` (Sl unit)

C

Position of ball when it again collides on the ground surface from the projection point `20 pi` (Sl unit).

D

Maximum height achieved by the ball is 20 (Sl unit)

Text Solution

Verified by Experts

The correct Answer is:
A, B, C, D
Promotional Banner

Similar Questions

Explore conceptually related problems

A ball is projected with 20sqrt2 m//s at angle 45^(@) with horizontal.The angular velocity of the particle at highest point of its journey about point of projection is

A uniform square plate of mass m is supported with its plane vertical as shown in the figure. Assume the centre of mass is on a horizontal the passing through A. If the cable at B breaks then just after that the angular acceleration of the plate is

Half of the recrtangular plate shown in figure is made of a material of density rho_1 and the other half of density rho_2 . The length of the plate is L. Locate the centre of mass of the plate.

A ball of mass 2kg is thrown with velocity 10m/s at an angle of 30°to the horizontal and another ball with the same mass is thrown at an angel of 60° to the horizontal with the same speed.The ratio will be their range will be

Moment of inertial of a uniform symmetric plate as shown in figure about x-axis is l.. Moment of inertia centre of plate O and perpendicular to the plane of plate is

A square plate of mass M and edge L is shown in the figure. The moment of inertia of the plate about the axis in the plane of plate and passing through one of its vertex making an angle 15^@ horizontal is

A particle of mass m and charge -q enters the region between the two charged plates initially moving along x-axis with speed v_(x) as shown in figure. The length of plate is L and a uniform electric field E is maintained between the plates. The vertical deflection of the particle at the far edge of the plate is

A ball is projected from point A with velocity 20 m/s prependicular to the inclined plane as shown in figure. What is the range of the ball on the inclined plane ?

A rough horizontal plate rotates with angular velocity omega about a fixed vertical axis. A particle or mass m lies on the plate at a distance (5a)/(4) from this axis. The coefficient of friction between the plate and the particle is (1)/(3) . The largest value of omega^(2) for which the particle will continue to be at rest on the revolving plate is

A vertically jet of water coming out of a nozzle with velocity 20 m//s supports a plate of mass M stationary at a height h = 15 m , as shown in the figure. If the rate of water flow is 1 litre per second, the mass of the plate is (Assume the collision to be perfectly inelastic).