Question

A truck running along a straight line increases its speed uniformly from 30 m/s to 60 m/s over a time interval 1 min. The distance travelled during this time interval is :

• A. 900 m
• B. 1800 m
• C. 2700 m
• D. 3600m

Answer 1

The correct option is C

2700 m

Here,

u = 30 m/s , v = 60 m/s , t = 1 min = 60s

Using, v = u + at

60 = 30 + 60a

a = 0.5 $m/s^2$

Also, $v^2$ = $u^2$ + 2aS

${60}^2$ = ${30}^2$ + (2 x 0.5 x S)

S = 3600 – 900

S = 2700m