A ball of mass 800g moving horizontally with a speed of 5...
A ball of mass 800g moving horizontally with a speed of 5m/s hits a vertical wall and rebounds with the same speed. The impulse experienced by the ball is?
0kgm
2kgm/s
4kgm/s
8kgm/s
Correct answer is D
Initial momentum = (0.8) × (5)
= 4.0kgms\(^{-1}\)
Final momentum
= (0.8) × (– 5)
= – 4.0kgms\(^{-1}\)
Impulse on ball
= Change in momentum
= 4.0 – (– 4.0)
= 8.0.0kgms\(^{-1}\)
I. Coherence II. Same frequency III. Same wavelength IV. Same Intensity Which of the condition...
It is observed that water will wet a clean glass because the?...
What is the decay constant of a radioactive element whose half-life is 3 seconds ...
Which of the following is a set of vectors? ...
When an elastic material is stretched by a force, the energy stored in it is ...