A carpenter exerts a force of magnitude 1 5 N at right angles to the surface of a nail of - Science - Force and Laws of Motion

Question

A carpenter exerts a force of magnitude 1 5 N at
right angles to the surface of a nail of mass 3 gram to drive it
into the wood If wood offers a resistive force of 0 6 N and the
time of interaction of hammer and the nail 0 01 s, the depth
through which the nail penetrates is?

Jyoti Pant · Accepted Answer

Net force acting on wood=1 5-0 6=0 9N Mass of nail=3gm=0 003 kg Using F=ma a=F/m=0 9 / 0 003=300 $m / s^{2}$ Now given that, t=0 01 sec Using v=u+at 0=u-300 x 0 01 u=3 m/s Again, $v^{2} = u^{2} + 2 a s 0 = 3^{2} + 2 \times (- 300) \times s 0 = 9 - 600 s s = 9 / 600 = 0 015 m$

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