Question

a body starts from rest and moving with an acceleration of 2m/s2. the displacement of the body is 3s is​

Answer 1

Explanation:

u=0

a=2m/S

2

t=10Second

S

1

=ut+0.5at

2

s

1

=0+0.5×2×100=100m

S

2

=v+2

v=u+at=0+20=20m/s

s

2

=20×30=600 m

0

2

−v

2

=2(−a)s

3

s

3

=

8

400

=50m

s=s

1

+s

2

+s

3

=100+600+50=750