Question

A carpenter exerts a force of magnitude 1.5 N at right angles on the surface of a nail of mass 3 gram to drive it into a wooden plank. If the plank offers a resistive force of 0.6 N and the time of Interaction of hammer and the nall 0.01 s, the depth through which the nall penetrates is ??​

Answer 1

Answer:

answer to this question is 1.5

Answer 2

Given:

Exerted force F1 =1.5N

m=3g=3×10¬³ kg

Resistive force F2= 0.6N

Net Force  =F1-F2

t=0.01s

Formula:

s=ut+1/2at²

s=1/2at²

s=1/2 Net force/m t²

s=1/2 0.9/3×10¬³×(0.01)²

s=15×10¬³m= 15mm

So, the depth through nail penetrated is 15mm.