A bullet of mass 10 g is fired horizontally into a thick wooden plank with a speed of…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A bullet of mass 10 g is fired horizontally into a thick wooden plank with a speed of 400 m s⁻¹. As it travels through the plank, it experiences a constant opposing force of 800 N until it is brought to rest.
Answer the following parts.
(i) Compute the magnitude of the impulse delivered to the bullet by the plank.
(ii) Determine the time taken for the bullet to come to rest inside the plank.
(iii) Assuming the retardation is uniform, calculate the distance the bullet travels inside the plank before stopping.