Question

A train starting from a railway station and moving with uniform acceleration attains a speed 40km hr in 10 minutes .Find the acceleration​

Answer 1

Given: t=10 min=10×60=600s

Initial speed of train is given as: u=0 ms

−1

Final speed of train is given as: v=40 km h

−1

=

3600

40×1000

=11.1 ms

−1

Now acceleration is given by the relation:

a=

t

v−u

=

600

11.1−0

=0.0185 ms

−2