Question

the kinetic energy of a body of mass 20kg is 33j.what will be its momentum? ​

Answer 1

Explanation:

Kinetic energy=1/2mv

2

And momentum=mv

As both the unit is in SI.

So,

momentum

K.E

=

mv

2

1

mv

2

=

2

1

v

2

1

v=

20

100

=5

v=10m/s

As given, momentum=mv=20 kg.m/s

m∗10=20

m=2kg