Impulse & Momentum
A 1.0g pellet is shot at a 17.5kg pumpkin. The pellet travels at 113m/s until it embeds itself in the pumpkin with a force of 62.3N.

a. How long does it take the pellet to stop?

b. What is the rate of acceleration of the pellet?

Aparticle of mass m is placed in a one-dimensional box of length l. the box is so small that the particle’s motion is relativistic, so that e p2/2m is not valid. (a) derive an expression for the energy levels of the particle using the relativistic energy–momentum relation and the quantization of momentum that derives from connement. (b) if the particle is an electron in a box of length l 1.00 1012 m, nd its lowest possible kinetic energy. by what percent is the nonrelativistic formula for the energy in error?