A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time ?(Given g = 9.8 m/s²)
A. More than 19.6 m/s.
B. At least 9.8 m/s.
C. Any speed less than 19.6 m/s.
D. Only with speed 19.6 m/s.
Answer:A
A man throws balls with the same speed vertically upwards one after the other at an interval of 2 seconds. What should be the speed of the throw so that more than two balls are in the sky at any time ?(Given g = 9.8 m/s²)
A. More than 19.6 m/s. B. At least 9.8 m/s. C. Any speed less than 19.6 m/s. D. Only with speed 19.6 m/s.