engineering recuitment NPCIL Scientific Assistant Physics Mock Test Physics Laws of Motion Newton's Laws of Motion
Two balls, A and B, are thrown simultaneously, 'A' vertically upward with speed 20 m/s from the ground and 'B' vertically downward from a height of 40 m with the same speed and along the same line of motion. At what point do the two balls collide by taking acceleration due to gravity as 9.8 m/s2
1
The ball will collide after 3s at a height of 30.2 m from the ground
2
The ball will collide after 2s at a height of 20.1 m from the ground
3
The ball will collide after 1s at a height of 15.1m from the ground
4
The ball will collide after 5s at a height of 20 m from the ground