Question

5. A car increase its speed
from 20 km/hr to 30 km/hr in
10 seconds its acceleration is
O
0.83 metre/second square
O 3 metre/second square
O 18 metre/second square​

Answer 1

Answer:

18 metre /second square

Answer 2

Answer:

vi= 30km/hr

v1= 30×5/18m/d

&vf= 20km/h

vf=20×5/18m/s

t=10sec

now,

a=change in velocity/time

a=vf-vi/t

a=8.34-5.56/10

a=2.78/10

0.27m/s2