This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Mass of block = 1 kg
acceleration of truck = 5 m/s²
pseudo force acting on block = 1×5 = 5N
maximum friction force that can act on block = μmg = 0.6×1×9.8 = 5.88 N

Since force acting on block is less than the maximum friction force, the friction force acting on it is 5N.