Question Answers

Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > A launch travels across a river from a point A to a point B of the opposite bank along the line AB forming angle alpha with the bank. The flag on the mast of the launch makes an angle beta with its direction of motion. Determine the speed

A launch travels across a river from a point A to a point B of the opposite bank along the line AB forming angle alpha with the bank. The flag on the mast of the launch makes an angle beta with its direction of motion. Determine the speed

A stone is projected from a point on the ground in such a direction so as to hit a bird on the top of a telegraph post of height h and then attain a height 2 h above the ground. If at the instant of projection find the ratio of the horizontal velocities of the bird and the stone if the stone still hits the bird. the bird were to fly away horizontal with a uniform speed