The acceleration of a body starting from rest varies with time
following the equation a = 3t + 4, where a is in ms-2 and t in s. The
velocity of body at t = 2 s will be
18 m/s
14 m/s
12 m/s
20 m/s
Answers
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1
Answer:
eq.for acceleration= 3t+4
put t= 2 sec
a= 3×2+4
a= 10 ms-²
Now using using eq v= u+ at
u = 0( initially body was at rest)
v = 0+10×2
v= 20ms-¹
Explanation:
so.. option d is correct 20m/s
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