Question

Plz ans it verrrry urgent sorry its blur

Answer 1

Answer:

s=4m

a=10m/sec^2

u=0m/sec

t=?

v=?

we know s=ut+1/2at^2

4=(0)t+1/2(10)t^2

4×2=(10)t^2

8/10=t^2

4/5=t

t=0.8

now v=?

we know

v=u+at

v=0+(10)0.8

v=8m/sec

Explanation:

Answer 2

Answer:

S=ut+

2

1

at

2

v=u+at

Average velocity =

Total time(t)

Total displacement(s)

=

t

ut+

2

1

at

2

=u+

2

1

at

Substitute, u=v−at in the above expression:

We get average velocity =v−at+

2

1

at=v−

2

1

at

Thus, two options are correct.