Laws of Motion 3 Question 15

16. A block of mass 1 kg lies on a horizontal surface in a truck. The coefficient of static friction between the block and the surface is 0.6 . If the acceleration of the truck is 5 m/s2, the frictional force acting on the block is …… N.

(1984,2M)

Show Answer

Answer:

Correct Answer: 16. (5)

Solution:

  1. The block will move due to friction.

The frictional force (f) is therefore

f=ma=(1)(5)=5 N

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