A ball moving with a velocity of 6 m/s strikes an identical stationary ball. After collision each ball moves at an angle of |
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a) |
|
b) |
3 m/s |
c) |
2 |
d) |
|
A ball moving with a velocity of 6 m/s strikes an identical stationary ball. After collision each ball moves at an angle of |
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a) |
|
b) |
3 m/s |
c) |
2 |
d) |
|
(c)
Applying the law of conservation of momentum in perpendicular to the initial line of motion,
or
Hence, speed of both will be same after collision
Now along the line of motion,
(ii)
Putting Eq.(i) in Eq. (ii),
Or m/s