Question

A body is moving with uniform acceleration of 10 m s-2
If it starts from rest, calculate its displacement after 5 s.​

Answer 1

Answer:

since it starts from rest

u=0

a=10

t=5sec

s=ut+1/2at^2

s= 0+1/2*10*25(t^2=5^2=25)

s= 1/2*10*25

=25*5

=75

so displacement is 75m

Answer 2

Answer:

125m

Explanation:

Given:

u=0 m/s

t=5 s

a=10 m/s^2

To find:

s

We know that

s=ut+$\frac{1}{2}$a$t^{2}$

s=(0)(5)+$\frac{(10)(25)}{2}$

s=0+125

s=125m