A cuboidal elevator cabon is shown in th...

A cuboidal elevator cabon is shown in the figure. A ball is thrown from point A on the floor of cabon when the elevator is falling under gravity. The plane of motions is ABCD and the angle of projection of the ball with AB, relative to elevator, if the ball collides with point C, is `alpha`. Then find the value of `tan alpha`.

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

KINEMATICS-2D
ALLEN |Exercise Exercise (S-2)|14 Videos
KINEMATICS-2D
ALLEN |Exercise Exercise (O-1)|40 Videos
KINEMATICS-2D
ALLEN |Exercise Exercise (O-2)|47 Videos
GRAVITATION
ALLEN |Exercise EXERCISE 4|9 Videos
MOTION IN A PALNE
ALLEN |Exercise SOLVED EXAMPLE|28 Videos

Similar Questions

Explore conceptually related problems

If the angle of elevation of a cloud from a point h metres above the surface of a lake is alpha and the angle of depression of its reflexion in the lake is beta , prove that the height of the cloud is (h (tan beta + tan alpha))/(tan beta - tan alpha) metres.

An elevator car (lift) is moving upward with uniform acceleration of 2 m//s^(2) . At the instant, when its velocity is 2 m/s upwards a ball thrown upward from its floor. The ball strikes back the floor 2s after its projection. Find the velocity of projection of the ball relative to the lift.

A ball was thrown by a boy a at angle 60^(@) with horizontal at height 1 m from ground. Boy B is running in the plane of motion of ball and catches the ball at height 1 m from ground. He finds the ball falling vertically. If the boy is running at a speed 20 km/hr. Then the velocity of projection of ball is-

A ball is thrown from the top of a 60m high tower with velocity 20sqrt(2)m//s at 45^(@) elevation of path at highest point. ( g=10m//s^(2) )

A ball is thrown horizontally from a point O with speed 20 m/s as shown. Ball strikes the incline plane along the normal to it after two seconds. Find value of x, if beta = pi//x (where beta is the angle of incline in degree)

A ball is thrown at an angle theta up to the top of a cliff of height L, from a point at a distance. L from the base, as shown in figure. Assuming that one of the following quantities is the initial speed required to make the ball hit right at the edge of the cliff, which one is it :-

Two identical small balls each of mass m are rigidly affixed at the ends of light rigid rod of length 1.5 m and the assmebly is placed symmetrically on an elevated protrusion of width l as shown in the figure. The rod-ball assmebly is titled by a small angle theta in the vertical plane as shown in the figure and released. Estimate time-period (in seconds) of the oscillation of the rod-ball assembly assuming collisions of the rod with corners of the protrusion to be perfectly elastic and the rod does not slide on the corners. Assume theta=gl (numerically in radians), where g is the acceleration of free fall.

On a frictionless horizontal surface , assumed to be the x-y plane , a small trolley A is moving along a straight line parallel to the y-axis ( see figure) with a constant velocity of (sqrt(3)-1) m//s . At a particular instant , when the line OA makes an angle of 45(@) with the x - axis , a ball is thrown along the surface from the origin O . Its velocity makes an angle phi with the x -axis and it hits the trolley . (a) The motion of the ball is observed from the frame of the trolley . Calculate the angle theta made by the velocity vector of the ball with the x-axis in this frame . (b) Find the speed of the ball with respect to the surface , if phi = (4 theta )//(4) .

A ball is thrown from a point with a speed 'v^(0)' at an elevation angle of theta . From the same point and at the same instant , a person starts running with a constant speed ('v_(0)')/(2) to catch the ball . Will the person be able to catch the ball ? If yes, what should be the angle of projection theta ?

A ball of mass 1 kg is projected horizontally as shown in figure. Assume that collision between the ball and ground is totally inelastic. The kinetic energy of ball in joulesy just collision is found to be 10prop . Find the value of alpha .

ALLEN -KINEMATICS-2D-Exercise (S-1)

A particle is projected in the x-y plane with y-axis along vertical. T...
Text Solution
|
A ball is thrown horizontally from a cliff such that it strikes the gr...
Text Solution
|
A Bomber flying upward at an angle of 53^(@) with the vertical release...
Text Solution
|
A ball is projected at an angle of 30^(@) above with the horizontal fr...
Text Solution
|
A ball is dropped from rest from a tower of height 5m. As a result of ...
Text Solution
|
A tank is initially at a perpendicular distance BT=360 m from the plan...
Text Solution
|
A Rajput soldier sits on a horse next to a river. Across the river the...
Text Solution
|
A ball is projected on smooth inclined plane in direction perpendicula...
Text Solution
|
A ball is thrown horizontally from a point O with speed 20 m/s as show...
Text Solution
|
A person decided to walk on an escalator which is moving at constant r...
Text Solution
|
On a frictionless horizontal surface , assumed to be the x-y plane ,...
Text Solution
|
A cuboidal elevator cabon is shown in the figure. A ball is thrown fro...
Text Solution
|
Two particles are thrown simultaneously from points A and B with veloc...
Text Solution
|
A man crosses a river in a boat. If he cross the river in minimum time...
Text Solution
|
Rain is falling vertically with a speed of 20ms^(-1)., A person is run...
Text Solution
|
A glass wind screen whose inclination with the vertical can be changed...
Text Solution
|
Boat moves with velocity 5 m/s on still water. It is steered perpendic...
Text Solution
|
Velocity of the boat with respect to river is 10 m/s. From point A it ...
Text Solution
|
Velocity of the boat with respect to river is 10m/s. From point A it i...
Text Solution
|
Drift is distance along a river a boat covers in crossing the river. I...
Text Solution
|