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'.
Share this question
More from Physics
- Dimensions of work are:
- The speed of sound in air is 340 m/s. A person shouts in front of a wall and hears an echo after 0.5 seconds. How far is the wall?
- The velocity of a body is doubled. Its acceleration will be:
- The potential energy of an object at the surface of the earth is usually taken as:
- If a body moves in a straight line without changing direction, the magnitude of its displacement is: