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Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A man is standing on a rail road car travelling with a constant speed of v = 10 m/s (Fig . 5.34). He wishes to throw a ball through a stationary hoop 5 m above the height of his hands in such a manner that the ball will move horizontally as it passes through the hoop. He throws the ball with a speed of 12.5 m/s w.r.t. himself. (a) What must be the vertical component of the initial velocity of the ball ? (b) How many seconds after he releases the ball will it pass through the hoop ? ( c) At what horizontal distance in front of the loop must he release the ball ?

A man is standing on a rail road car travelling with a constant speed of v = 10 m/s (Fig . 5.34). He wishes to throw a ball through a stationary hoop 5 m above the height of his hands in such a manner that the ball will move horizontally as it passes through the hoop. He throws the ball with a speed of 12.5 m/s w.r.t. himself. (a) What must be the vertical component of the initial velocity of the ball ? (b) How many seconds after he releases the ball will it pass through the hoop ? ( c) At what horizontal distance in front of the loop must he release the ball ?

(b) location of the point of striking of the food package (c) velocity of the package at the time of striking the ground A boy of height 1.5 m A relief food package is dropped from a airplane which is moving horizontal with a velocity of 30 m s ^ −1 at a height h = 50 m. Find the (a) time of flight of the package A shell is projected. from a gun with a muzzle velocity and (d) displacement of the food package. making move on a skateboard due east with velocity 4 m s^-1