Question

15) If the velocity of a car starting from rest become 30 metre per
second in 10 seconds what is its acceleration
O 3 m/s
O
2 m/s
5 m/s​

Answer 1

Answer:

v=30 m

u=0(at rest)

t= 10

Explanation:

FORMULAE -

V=U +AT

30 = 0+30A

A= 1m/s2

Answer 2

Answer:

3 m/sec

Explanation:

u=0 m/sec(body starts from rest)

v=30 m/sec

t=10 seconds

Using the equation of motion

$\tt \longrightarrow \: v = u + at \\ \tt \longrightarrow \: a = \frac{v - u}{t} \\ \tt \longrightarrow a = \frac{30 - 0}{10} \\ \tt \longrightarrow \: a = \frac{ \cancel{30}}{ \cancel{10}} = \red{ 3 \: m/sec}$