Question Answers

Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A ball is thrown from the top of a building 45 m high with a speed 20 m/s above the horizontal at an angle of 30. Find (a) The time taken by the ball to reach the ground. (b) The speed of ball just before it touches the ground.

A ball is thrown from the top of a building 45 m high with a speed 20 m/s above the horizontal at an angle of 30. Find (a) The time taken by the ball to reach the ground. (b) The speed of ball just before it touches the ground.

(b) location of the point of striking of the food package (c) velocity of the package at the time of striking the ground 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 and (d) displacement of the food package.