A 10.0 g bullet is fired into a stationary 5.00 kg block of wood. The bullet lodges inside the block. The speed of the block plus bullet system immediately after the collision is measured at 0.600 m/s.

What was the original speed of the bullet?

Respuesta :

Answer:

v = 300.6 m/s

Explanation:

given,

mass of bullet(m)  = 10 g = 0.01 kg

mass of block of wood (M)= 5 Kg

speed of the block plus bullet after collision(V) = 0.6 m/s

speed of wood(u) = 0 m/s

original speed of the bullet(v) = ?

using conservation of momentum

m v + Mu = (M + m)V

0.01 x v + 5 x 0 = (5 + 0.01) x 0.6

0.01 x v = (5.01) x 0.6

[tex]v = \dfrac{3.006}{0.01}[/tex]

v = 300.6 m/s

the original speed of the bullet before collision is equal to v = 300.6 m/s