Explanation:
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a) The velocity after the collision.is 11.456 m/s.
b) The kinetic energy lost due to the collision is 44.564 J.
When two bodies of different masses move together each other and have head on collision, they travel to same or different direction after collision.
The external force is not acting here, so the initial momentum is equal to the final momentum. For inelastic collision, final velocity is the common velocity for both the bodies.
m₁u₁ +m₂u₂ =(m₁ +m₂) v
Given are the two objects, m1 = 0.6 kg and m2 = 4.4 kg undergo a one-dimensional head-on collision. Their initial velocities along the one-dimension path are vi1 = 32.4 m/s [right] and vi2 = 8.6 m/s [left].
(a) Substitute the values, then the final velocity will be
0.6 x32.4 +4.4 x 8.6 = (0.6+4.4)v
v = 11.456 m/s
Thus, the velocity after collision is 11.456 m/s.
(b) Kinetic energy lost due to collision will be the difference between the kinetic energy before and after collision.
= [1/2m₁u₁² +1/2m₂u₂² ] - [1/2(m₁ +m₂) v²]
Substitute the value, we have
= [1/2 x 0.6 x32.4² + 1/2 x4.4 x 8.6²] - [1/2 x(0.6+4.4)11.456²]
= 44.564 J
Thus, the kinetic energy lost due to the collision is 44.564 J.
Learn more about conservation of momentum principle
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