Question

a car acquires a velocity of 72km/h in 10 second starting from rest. Find a.the acceleration .b.the average velocity. c.the distance traveled in this time
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Answer 1

first we will change km /h, in m/sec

72×1000/3600

=20m/sec

a=v-u/t

=20/10. (as initial velocity is 0)

=2m/sec^2

average velocity=u+v/2

0+20/2=10

s=ut+1/2at^2

=100m