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13-11-2021
Physics

contestada

Find the velocity of a body of mass 100 g having kinetic energy of 20 J.

Respuesta :

kailemontefalco kailemontefalco

13-11-2021

Answer:

Explanation:

Let v be the velocity of object ,

Given that mass of object , m=100 g=

1000

100

kg=0.1 kg

& kinetic energy of object =20 J

K.E =

2

1

mv

2

20=

2

1

×0.1v

2

⟹v

2

=400

⟹v=20 m/s

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