Physicshard · Past Paper
A ball is thrown upward with a speed of u. It passes a window of height 'h' at a height 'H' from the ground. How much time does it take to cross the window?
A√(2h/g)
BDepends on u
C2u/g
Du/g
✓ Correct Answer: B — Depends on u
The time depends on the velocity of the ball when it reaches the bottom of the window, which depends on 'u' and 'H'.
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