A hammer weighing 3 kg strikes the head of a nail with a speed of 2 ms -1 drives it by 1 cm into the wall. The impulse imparted to the wall is

Question

A hammer weighing 3 kg strikes the head of a nail with a speed of 2 ms -1 drives it by 1 cm into the wall. The impulse imparted to the wall is (A) 6 Ns (B) 3 Ns (C) 2 Ns. (D) 12 Ns

Tardigrade Admin · Accepted Answer

As we know, |impulse |=| change in momentum mid =| p 2- p 1| =|0- mv 1|=|0-3 × 2|=6 Ns

Q. A hammer weighing $3 k g$ strikes the head of a nail with a speed of $2 m s^{- 1}$ drives it by $1 c m$ into the wall. The impulse imparted to the wall is

$6 N s$

$3 N s$

$2 N s$ .

$12 N s$

As we know, |impulse $∣ = ∣$ change in momentum $∣$
$= ∣ p_{2} - p_{1} ∣$
$= ∣ 0 - m v_{1} ∣ = ∣0 - 3 \times 2∣ = 6 N s$

Q. A hammer weighing 3kg strikes the head of a nail with a speed of 2ms−1 drives it by 1cm into the wall. The impulse imparted to the wall is

6Ns

3Ns

2Ns.

12Ns