Question

An object of mass 4 kg moving with velocity of 6 m/s along a straight line collides head on with another object of mass 2 kg which is at rest. If the collision is perfectly elastic what is the velocity of the first object after the collision?


that's like a good girl..xD

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Answer 1

Answer:

HEY MATE

HERE IS YOUR ANSWER!!

Linear momentum is conserved

0.4×4+0.4×2=0.8×v

as shown in figure and B.

v=

0.8

1.6+0.8

=3m/s

Kinetic energy before collision =

2

1

0.4(4)

2

+

2

1

0.4(2)

2

=3.2+0.8=4J

Kinetic after collision =

2

1

0.8(v)

2

=0.8×3

2

=3.6

Loss of kinetic energy =4−3.6=0.4J

Explanation:

HOPE IT HELPS YOU !!!

Answer 2

Explanation:

This is the answer of ur question