Question

Arile bullet travelling at 350 m/s strikes a large tree,
which it penetrates to a depth of 0 130 m. The mass of the
bullet is 1.80 g Assume a constant retarding force, (e) How
much time is required for the bullot to stop? (b) What force, an
SUNON NIINN the MAP on the bulle​

Answer 1

Explanation:

we can use following equation to find the time

v = u + at

But before that we have to find the acceleration

therefore we use this eqaution

${v}^{2} = {u}^{2} + 2as \\ 0 = {350}^{2} + 2 \times a \times 0.130 \\ a = - 471153.84ms^{ - 2}$

Now we have the acceleration then let's find the time

$v = u + at \\ 0 = 350 + - 471153.82 \times t \\ t = 7.42 \times 10^{ - 4} s$

Force

$f = ma \\ = 1.8 \times - 47115.84m {s}^{ - 2} \\ = 848.07n$