Question

A block of mass 2 kg is placed on a truck as shown in figure. The coefficient of kinetic friction between
the block and surface is 0.5. The truck starts from rest and moves with acceleration 8 m/s2. After how much time the block fall off the truck

1) 4s
2) 3s
3) 2s
4) 1.5 s​

Answer 1

Answer:

$your \: answer \\ \\ \\ \\ 1) 4s$

Explanation:

$8 \\ - \\ 2 \\ \\ = 4$

Answer 2

The block will fall off the truck in 2s. Distance travelled by the truck in this time. s′=12a0t2=12×8×22=16m 

option c is correct

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