Two balls, with the same speed , are thrown in opposite directions from a tower, one vertically upwards and the other vertically downwards. The time taken by each ball to reach the ground is 6s and 2s, respectively. What is the height of the tower and the initial velocity of the two balls?
A stone is thrown downwards from a building 500m high. At the same time a ball is thrown upwards with an initial velocity of 5m/s. When do they meet?