A particle is projected at an angle 60^@...

A particle is projected at an angle `60^@` from Horizon from ground with speed u. after some time it collides with a wall inclined at an angle `30^@` from horizon. At the time of collision velocity of particle is perpendicular to the wall. Find speed of the particle at the time of collision :-

`u`

`u/sqrt3`

`(2u)/sqrt3`

`2u`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

TEST PAPER 2
ALLEN|Exercise PHYSICS|45 Videos
TEST PAPER 4
ALLEN|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

A particle is projected at an angle theta from ground with speed u (g = 10 m/ s^2 )

A particle is projected at angle theta with horizontal from ground. The slop (m) of the trajectory of the particle varies with time (t) as

A particle is thrown with a speed u at an angle theta with horizontal. After how much time the velocity of particle will be perpendicular to the initial motion of direction

A particle is projected at an angle of 60^(@) above the horizontal with a speed of 10m//s . After some time the direction of its velocity makes an angle of 30^(@) above the horizontal. The speed of the particle at this instant is s

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

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.

A particle is projected with velocity u at angle theta with horizontal. Find the time when velocity vector is perpendicular to initial velocity vector.

A particle is projected horizontal with a speed u from the top of plane inclined at an angle theta with the horizontal. How far from the point of projection will the particle strike the plane?

ALLEN-TEST PAPER 3-PHYSICS

200 MeV of energy may be obtained per fission of U^235. A reactor is g...
Text Solution
|
The binding energy per nucleon of O^16 is 7.97 MeV and that of O^17 is...
Text Solution
|
A particle is projected at an angle 60^@ from Horizon from ground with...
Text Solution
|
The angle of projection at which the horizontal range and maximum heig...
Text Solution
|
A particle is projected from ground with velocity 3hati + 4hati m/s. F...
Text Solution
|
Two particles are projected with speeds u1 and u2 in mutually opposite...
Text Solution
|
An aeroplane flying 490 m above the ground level at 100 m/s, releases ...
Text Solution
|
A positively charged body is brought near to bob of an uncharged gold ...
Text Solution
|
When a soap bubble is charged :-
Text Solution
|
A charge Q1 exerts some force on a second charge Q2. If a 3rd charge Q...
Text Solution
|
Two particles A and B having equal charges are placed at distance d ap...
Text Solution
|
An infinite number of charges, each of magnitude q, are placed along x...
Text Solution
|
Two pitch balls carrying equal charges are suspended from a common poi...
Text Solution
|
Two spheres A and B are charged with the charges of +10 and +20 coulom...
Text Solution
|
The electric field due to a uniformly charged sphere is maximum at :
Text Solution
|
Charges q, 2q,3q and 4q are placed at the corners A,B,C and D of a squ...
Text Solution
|
A charged oil drop is suspended in a uniform filed of 3xx10^4 v//m so ...
Text Solution
|
The electric field at a distance (3R)/2 from the centre of a charged ...
Text Solution
|
Four point +ve charges of same magnitude (Q) are placed at four corner...
Text Solution
|
A thin semi-circular ring of radius r has a positive charge q distribu...
Text Solution
|