A particle moves along a straight line and its velocity depends on time as v = 4t – t 2 . Then for first 5s-
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(c, d) v = 4t – t 2
= 4t – t 2
s = 2 × 5 2 – 
= 
m
Avg. velocity = 
= 
m/s
a = (4 – 2t) m/s 2
a =S 4m/s 2 at t = 0
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