Question

at rest
A body
of
mass 5 gram in it
gain the velocity of sms', due to the
Aplication og force
forie 5N for a period of
calarlate acceleration develop
ed in the bo
body
one minute.calculate acceleration developed in the bOdy​

Answer 1

Explanation:

Given, mass of the body, m=5kg;

Initial velocity of the body, u=0;

Force acting on the body, F=20N;

Time for which the force acts, t=10s

If a is the acceleration produced in the body,

a=

m

F

=

5

20

=4m/s

2

Let v be the velocity of the body after 10 s.

Clearly, v=u+at=0+(4)×(10)=40m/s

Kinetic energy acquired by the body,

E

k

=

2

1

mv

2

=

2

1

(5)×(40)

2

=4000J

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