Answers

2015-08-18T20:05:00+05:30
Here u = initial velocity, v = final velocity, t = time, a = acceleration
1st case
u = 0m/s
v = 6m/s
t= 30s
a =v-u/t = 6-0/30 = 6/30 = 0.2 m/s∧2

2nd case
u = 6m/s
v = 4m/s
t = 5s
a = 4-6/5 = -2/5 = -0.4 m/s∧2

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