Q.5.The position of a body with respect to time is given by x=4t^3-6t^2+20t+12. Acceleration at t=0 will be
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On differenciating inst. velocity w.r.t time we get 24t-12 i.e. inst. acceleration.
Inst. Acceleration at t=2s will be -12m/s^2
Retardation= 12m/s^2
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