Question

Convert 54 km/hr into m/sec
When a car driver travelling at a
speed al i om/sec applies brakes.
and brings the car in diest in
20 sec. Then what will be retardatione​

Answer 1

54km/hr=54×5/18=15m/s

v=0m/s

t=20sec

a=v-u/t

=0-15/20=-3/4m/sec square..

hope it helps you frnd

Answer 2

54km/hr=54×5/18=15m/s

v=0m/s

t=20sec

a=v-u/t

=0-15/20=-3/4m/sec square..

Please have a great day and please mark my answer as brainliest.