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A particle starts from rest, accelerates...

A particle starts from rest, accelerates at `2(m)/(s^2)` for 10 s and then goes for constant speed for 30 s and then decelerates at `4(m)/(s^2)`. Till it stops. What is the distance travelled by it?

A

650 m

B

700 m

C

750 m

D

800 m

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