Question

Whoever will answer this answer will be the brainlist :. Q. A bullet traveling with a speed of 150m/s is just able to pierce a plank 4 cm thick . What should be the velocity of the bullet so that it just able to pierce a plank of thickness 16cm?​

Answer 1

Answer:

600 m/s

Explanation:

150 m/s = 4 cm

x m/s = 16 cm

By cross multiplication we get,

150 × 16 = 4 × x

= 2400 = 4x

x = 2400/4

x = 600

Thus it should travel with a velocity of 600 m/s