Question

if the velocity of a ball is tripled , what will be the ratio of : I) it's initial kinetic energy and final kinetic energy . 2) initial momentum amd final momentum ​

Answer 1

∵v

1

=v; v

2

=3v

KE

1

=

2

1

mv

2

KE

2

=

2

1

m(3v)

2

=

2

9

mv

2

KE

1

:KE

2

=

2

1

mv

2

:

2

9

mv

2

=1:9

Answer 2

Answer:

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Explanation:

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