Physics, asked by phulpotofayaz33, 9 months ago

A 40 kg block of wood is dragged along the platform of a railway station with the force of 300N. The coefficient of friction between the wood and the concrete of platform is 0.5. The force of friction is:

A. 300N
B. 200
C. 100
D. ZERO

Answers

Answered by aryan1234243

9

Explanation:

the answer will

f=ma

300=40a

a=30/4

a=7.5

f-mg=ma

f=u mg

put the u get urs answer perfectly

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