Home
Class 12
PHYSICS
A stone is projected from point A with s...


A stone is projected from point A with speed u making an angle `60^@` with horizontal as shown. The fixed inclined suface makes an angle `30^@` with horizontal. The stone lands at B after time t. Then the distance AB is equal to

A

`(ut)/(sqrt3)`

B

`(sqrt3)/(2)`

C

`sqrt3ut`

D

`2ut`

Text Solution

Verified by Experts

The correct Answer is:
A

The horizontal displacement in time t is `AC=ucos60^@t=(ut)/(2)`
Range on inclined plane`=(AC)/(cos30)=(ut)/(sqrt3)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A particle is fired from a point on the ground with speed u making an angle theta with the horizontal.Then

An inclined plane makes an angle of 60^(@) with horizontal. A disc rolling acceleration equal to:

A particle is projected with speed 'u' at an angle 60^@ with horizontal, then find the speed when its angle with horizontal changes to 30^@ .

A projectile is projected from the ground by making an angle of 60^@ with the horizontal. After 1 s projectile makes an angle of 30^@ with the horizontal . The maximum height attained by the projectile is (Take g=10 ms^-2)

A projectile is projected with a speed u at an angle theta with the horizontal. What is the speed when its direction of motion makes an angle theta//2 with the horizontal

A stone is projected with speed of 50 ms^(-1) at an angle of 60^(@) with the horizontal. The speed of the stone at highest point of trajectory is

A projectile is projected at 10ms^(-1) by making an angle 60^(@) to the horizontal. After sometime, its velocity makes an angle of 30^(@) to the horzontal . Its speed at this instant is:

A particle is projected with velocity 50 m/s at an angle 60^(@) with the horizontal from the ground. The time after which its velocity will make an angle 45^(@) with the horizontal is

A particle is thrown with speed u at an angle alpha with horizontal from the ground. After how much time, the velocity of particle will make an angle beta with horizontal.