The particle travels hundred metre after starting from rest in 10 seconds its acceleration is a 2 metre per second square for metre per second square 1 metre per second square 20 metre per second square
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Explanation:
v=20m/s
For region III,t=
4
20
=5sec
Distance covered is equal the area under velocity time graph
2
1
×10×20+30×20+
2
1
×5×20
s=750m
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