the displacement of a particle along x-axis is given by x= 3 + 8t + 7t². calculate the velocity and acceleration are the equals to 2 second.
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Answer:
Distancex=3+8t+7t
2
,
Velocity v=
dt
dx
=8+14t
v
t=2s
=8+14×2=36ms
−1
,
a=
dt
dv
=14ms
−2
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