20.6k views
20 votes
A bullet of mass 25 g moving with a velocity of 200 cm/s is stopped within 5 cm of the target. The average resistance offered by the target is:​

User Yshak
by
3.5k points

2 Answers

7 votes

vf²=vi²-2ad (vf=0, stop)

vi²=2ad

200²=2.a.5

a = 200² : 10

F = ma

F = 25 x 200² : 10

F = 1 x 10⁵ dyne = 1 N

User Franquis
by
3.6k points
11 votes


\huge{\boxed{{\colorbox{red}{1 N}}}}

that's my answer

User Ngoldbaum
by
3.7k points