An object of mass 2kg moving with a velocity 3ms-1
An object of mass 2kg moving with a velocity 3ms-1 collides head-on with another object of mass 1kg moving in the opposite direction with a velocity of 4ms-1. If the objects stick together after collision, calculate their common speed.
0.60ms-1
0.67ms-1
2.00ms-1
3.33ms-1
Correct answer is B
M1V1−(M2V2)=V(M1+M2)
2 x 3 - 1 x 4 = V(2 + 1)
V = 23
= 0.67ms-1
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