Answers

2015-06-18T13:29:46+05:30
Speed = distance/time
so : distance = speed * time
acceleration , a = (change in velocity)/(time)
though you can use a = (change in speed)/(change in time)
so change in speed = 2 km/h
change in time = 1 second
a = 2/1 = 2a
1 1 1
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2015-06-18T13:32:35+05:30
A=(v-u)/t= {(58×5/18)-(56×5/18)}/1m/s^2=5/9m/s^2
2 3 2