Question

two objects of mass 1kg and 4 kg have equal momentum. what is the ratio of there kinetic energy ?​

Answer 1

Answer:

m1v1=m2v2

v1/V2=M2/M1=4

ratio of kin.energy={(1/2)m1v1²}/{(1/2)m2v2²}

=v1²/4v2²= 16/4=4

Explanation:

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Answer 2

Answer:

4:1

Explanation:

1v1=4v2

v1/v2=4

2k1/v1/2k2/v2=mom1/moment2

[k1/k2][v2/v1]=1

k1/k2=v1/v2

=4:1