1
Question
If a ball strikes with a velocity u1 with a wall which itself is approaching it with a velocity u2. Then
which of the given options are correct?
If a ball strikes with a velocity u1 with a wall which itself is approaching it with a velocity u2. Then
which of the given options are correct?
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Solution
The correct option is A
v1−v2 = −e(u1−u2)
v1−(−u2) = −e[u1−(−u2)]
v1 = −e(u1+u2)−u2
In case of perfectly elastic collision,
v1 = u1−u2−u2 = −(u1+2u2)
v1 = −(u1+2u2)
v1−v2 = −e(u1−u2)
v1−(−u2) = −e[u1−(−u2)]
v1 = −e(u1+u2)−u2
In case of perfectly elastic collision,
v1 = u1−u2−u2 = −(u1+2u2)
v1 = −(u1+2u2)