Question

a hammer of mass 500g, moving 50m/s strike a nail. The nail stops the hammer in a time of 0.101s what is force of the nail on the hammer

Answer 1

the (—)sign indicates the opposition force! I hope this may help you if it helps comment below!!!

Answer 2

AnswEr:

$\bf{Given}\begin{cases}\sf{Mass\:of\:hammer,m=500g=0.5kg}\\\sf{Initial\:velocity\:of\:hammer,u=50m/s}\\ \sf{Final\:velocity\:of\:hammer,v=0}\\\sf{Time,t=0.01s} \end{cases}$

• $\sf\underline\orange{\:\:\:\:Acceleration\:\:,\:\:a:-\:\:\:\:}$

$\longrightarrow \sf \: a = \frac{v - u}{t} \\ \\ \longrightarrow \sf \frac{0 - 50}{0.01} \\ \\ \longrightarrow \sf \: - 5000 \: ms - {}^{2}$

• $\sf\underline\green{\:\:\:\:Force\:applied\:by\:nail:-\:\:\:}$

F = ma

$\longrightarrow \sf \: 0.5 \times - 5000 \\ \\ \longrightarrow \sf 2500 \: n$

Opposite to motion of hammer.