Question text
5 A girl throws a ball vertically upwards. It takes a time of 3.20 s to return to her hand. Assume air resistance is negligible. What is the initial speed with which the ball is thrown? A 3.07 m s–1 B 7.85 m s–1 C 15.7 m s–1 D 31.4 m s–1
5 A girl throws a ball vertically upwards. It takes a time of 3.20 s to return to her hand.
Assume air resistance is negligible.
What is the initial speed with which the ball is thrown?
A 3.07 m s–1 B 7.85 m s–1 C 15.7 m s–1 D 31.4 m s–1
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