Passage type questions.
A block of mass 5 kg is lying on a rough horizontal surface. The coefficient of static and kinetic
friction is 0.3 and 0.1 and g = 10 ms-2
22.
The frictional force on the block is
( IBI
b) 15 N
c) 10 N
d) zero
a) 25 N
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Explanation:
Zero
The frictional force acting on the block is 0.
Frictional force acts only when a net external force acts on the object. And the frictional force acts in the opposite direction of external force preventing the impending motion.
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