Question

A car accelerates uniformly from 30 ms¹ to 70 ms¹¹ in 8 seconds. Calculate the acceleration​

Answer 1

Answer:

Answer

Acceleration=

Time

Change in Velocity

Change in Velocity = 36−18=18km/h=5m/s

Time=5 Seconds

Acceleration =

5

5

=1m/s

2

Equation of motion can be given as:

s=ut+(

2

1

)at

2

u=18km/h=5m/s

t=5s

a=1m/s

2

s=(5×5)+(

2

1

×1×5×5)

s=25+12.5

s=37.5m