Question

a
body moving with acceleration covers a displacement
of 5m
in
2s find velocity after 2s if initial velocity is

1m/s
​

Answer 1

Answer:

Using, s=ut+

2

1

at

2

s

1

=u+

2

1

a

or, 3=u+

2

a

∴a=6−2u

s

2

=2u+

2

1

a×4

8=2u+2a

Solving the equations

8=2u+2(6−2u)

8=2u+12−4u

2u=4

u=2m/s

∴a=6−2u=6−4=2m/s

2

Explanation:

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