Question

A car is running at a speed of 54km/h. In the next second, its speed is 63km/h. The distance covered by the car in 1 second is ?

Answer 1

u=54 km/h

=15 m/s

v=63 km/hr

=17.5 m/s

v=u+at

17.5=15+a*1

a=2.5

v²-u²=2as

s=17.5²-15²/2*2.5

=16.2 m