Question

Mass of a body is 25 kg. Find its velocity if the kinetic energy is 100J
plz answer fast ​

Answer 1

Answer:

Let v be the velocity of object

Mass of object , m=100 g=0.1 kg

Kinetic energy of object =20 J

⟹

2

1

×0.1v

2

=20

⟹v

2

=400

⟹v=20 m/s

Answer 2

Answer:

Given : K.E=100 J p=50 kg m/s

Using K.E=

2m

p

2

∴ 100=

2m

50

2

⟹m=12.5 kg

Explanation:

please mark me as brainlist ✌️❤️