A projectile is required to hit a target whose coordinates relative to the horizontal and vertical axes through the point of projectile are (a,b) . If the muzzle velocity is `sqrt(2ga)`, show that it is impossible to hit the target if `b ge3/4a`.

A projectile is required to hit a target whose co-ordinates relative to horizontal and vertical axes through the point of projection are (alpha, beta) If the projection speed is sqrt(2g alpha) . Then the condition when it is impossible to hit the target is

A projectile is aimed at a mark on a horizontal plane through the point of projection and falls 6 m short when its elevation is 30° but overshoots the mark by 9 m when its elevation is 45^@ . The angle of elevation of projectile to hit the target on the horizontal plane is :

A projectile is aimed at a mark on a horizontal plane through the point of projection and falls 6 m short when its elevation is 30° but overshoots the mark by 9 m when its elevation is 45^@ . The angle of elevation of projectile to hit the target on the horizontal plane is :

A can hit a target in 3 out of 4 shots and B can hit the target in 4 out of 5 shots. What is the probability of hitting the target ?

From the top of a hill 480 m high , a projectile is fired horizontally with a speed of 96 m//s . Calculate (i) the time taken by projectile to reach the ground . (ii) the distance of the target from the hill . (iii) the velocity with which the projectile hits the ground . Take g=10ms^(-2)

A,B and C can hit a target 3 times out of 5 trials, 4 times out of 5 trials and 2 times out of 5 trials. Find the probability that: (i) exactly two can hit the target (ii) at least two can hit the target.

A,B and C can hit a target 3 times out of 5 trials, 4 times out of 5 trials and 2 times out of 5 trials. Find the probability that: (i) exactly two can hit the target (ii) at least two can hit the target.

(A): In order to hit a target, a man should point his rifle in the same direction as target. (R) : The horizontal range of the bullet is depends only on the angle of projectile with horizontal direction. C

Assertion : In order to hit a target, a man should point his rifle in the same direction as target. Reason : The horizontal range of the bullet is dependent on the angle of projectile with horizontal direction.

A ball is thrown from a point O aiming a target at angle 30^(@) with the horizontal so that the ball hits the target at B but the ball hits at point A, a vertical distance h below B. If the intial velocity of the ball is 20 ms^(-1) and the horizontal distance between O and C is 10 m. Find the value of h.