Question

a car accelerated from 18km/h to 36km/h in 10 second. calculate the acceleration in km/h^2 and m/s^2

Answer 1

hey your ans is here


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given to us

initial velocity =18km/h2
final velocity =36km/h2
time=10s

so first convert all velocities in m/sec2
so
initial velocity =18×5/18=1m/sec2
final velocity =36×5/18=10m/sec2
time =10sec

acceleration =final velocity-initial velocity /time
acceleration =10-1/10=9/10=0.9m/sec2

now

initial velocity =18km/h
final velocity =36km/h
time=10sec------hours
time=1/360

now
acceleration =36-18/360
acceleration =18/360=1/20
=0.05km/h2

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