Question

A car accelerate uniformly from 18km/h to 36km/h in 5 seconds. Calculate it's acceleration

Answer 1

Answer:

Given,

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

Explanation:

hope it will help...

Answer 2

Answer:

1 ms^-2

Explanation:

u=18km/h= 60×60 18×1000 =5m/s

v=36km/h= 60×6036×1000 =10m/s

t=5sec

acceleration, a=?

v=u+at

10=5+5a

5a= 5

a= 5/5=1m/s