Question

a car accelerates uniformly from 18kmh in 5 sec. calculate acceleration and distance covered.

Answer 1

Answer:

So, 18 × 5/18 = 5 m/s. Similarly, the final velocity is given as 36 km/s. So, 36 × 5/18 = 10 m/s

Explanation:

u=18km/h=

60×60

18×1000

=5m/s

v=36km/h=

60×60

36×1000

=10m/s

t=5sec

acceleration, a=?

1st equation of motion,

v=u+at

10=5+5a

5a=5

a=

5

5

=1m/s