Home
Class 11
PHYSICS
A body is projected veritclaly upwards.T...

A body is projected veritclaly upwards.The times corresponding to height h while ascending and while descending are `t_(1)` and `t_(2)` respectively.
Then, the velocity of projection will be (take g as acceleration due to gravity)

A

`"gt"_1`

B

`"gt"_2`

C

`g(t_1+t_2)`

D

`(g(t_1 + t_2))/(2)`

Text Solution

Verified by Experts

The correct Answer is:
D
If `t_1` and t_2` are time of ascent and descent respectively then time of flight `T = t_1 +t_2 = (2u)/(g)`
`rArr u = g(t_1 + t_2)/(2)`
Promotional Banner

Similar Questions

Explore conceptually related problems

A body is projected verticallt upwards. If t_(1) and t_(2) be the times at which it is at a height h above the point of projection while ascending and descending respectively, then:

The maximum height reached by projectile is 4 m . The horizontal range is 12 m . The velocity of projection in m s^-1 is (g is acceleration due to gravity)

A body is vertically upwards. If t_(1) and t_(2) are the times at which it is height h above the point of projection while ascending and descending, respectively, find (a) the velocity of projection and height h, (b) the maximum height reached by the body and (c ) the velocity of the body at height h//2 .

Two particles are projected vertically upward with the same velocity on two diferent planes with accelerations due to gravities g_(1) and g_(2) respectively. If they fall back to their initial points of projection after lapse of time t_(1) and t_(2) respectively. Then

A body is projected vertically upwards at time "t=0" and it is seen at a height H at instants t_(1) and t_(2)seconds during its flight.The maximum height attained is (g is acceleration due to gravity

A ball is projected vertically up such that it passes thorugh a fixes point after a time t_(0) and t_(2) respectively. Find a. The height at which the point is located with respect to the point of projeciton b. The speed of projection of the ball. c. The velocity the ball at the time of passing through point P . d. (i) The maximum height reached by the balll relative to the point of projection A (ii) maximum height reached by the ball relative to point P under consideration. e. The average speed and average velocity of the ball during the motion from A to P for the time t_(1) and t_(2) respectively. .

A particle is projected vertically upwards and it reaches the maximum height H in time T seconds. The height of the particle at any time t will be-