Mathematics · Kinematics
If a ball projected vertically upwards with a certain initial velocity from the ground crosses a point at a height of 25 m twice in a time interval of 4 s, then the initial velocity of the ball is: (Take acceleration due to gravity g = 10 m/s2)
- 125 m/s
- 240 m/s
- 330 m/s✓
- 420 m/s
Correct answer
30 m/s
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