A box rests in the rear of a truck moving with a deceleration of 2 m/s2. To prevent the box from sliding the approximate value of static coefficient of friction between the box and the bed of the truck should be
(a) 0.1 (b) 0.2 (c) 0.3 (d) 0.4
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2 m/s2. To prevent the box from sliding the approximate value of static coefficient of friction between the box and the bed of the truck should be