Question

A child slides down an inclined surface. The speed changes at a constant rate from 15 cm /sec to 27 cm/sec in 4 sec. Then it's acceleration is

Answer 1

Here;

v=15cm=15/100=0.15m

U=27cm=27/100=0.27m

t=4secs

Acceleration=v-u/t

=0.15-0.27/4

=0.0825m/s^2