Question

An iron block of mass 5 kg is kept on a trolley. If the trolley
is being pushed with an acceleration of 5 m/s2, What will
be the force of friction between the block and the trolley
surface (Take the coefficient of static friction between the
block and the surface to be 0.8)
[DUMET 2010)
(a) Zero
(b) 5N
(c) 4N
(d) 25 N​

Answer 1

F= ma

F=5×5=25N

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Answer 2

Explanation:

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