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The displacement of a particle, moving in astraight line, is given by s- 2t2 +2t +4 wheres is in metres and t in seconds. The accelerationof the particle is:(1) 2 m/s(3) 6 m/s(2) 4 m/s2(4) 8 m/s2 |
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Answer» Differentiate two times for acceleration..d2s/dt2=4m/s^2 |
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