Answer :

(a) 1.6 × 10-2 s


(b) 1.6 × 10-2 s


(c) 3.6 × 10-2 s





So, ,


As the particle comes to rest for the first time




b) acceleration of the particle



=


For the maximum acceleration the expression


should bear its maximum value i.e. -1


So,




c) the particle comes to rest second time after




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