Question

A rifle bullet with a mass of 16.5 g traveling toward the right at 285 m/s strikes a large bag of sand and penetrates it to a depth of 22.6 cm. Determine the magnitude and direction of the friction force (assumed constant) that acts on the bullet.
initial momentum = .0165 * 285
change of momentum = -.0165*285

average speed during stop = 285/2

time to stop = .226/average speed during stop

Force = change in momentum / time to stop

Related Questions

A 30-06 caliber hunting rifle fires a bullet of mass 0.0118 kg with a velocity of 505 m/s to the r... This is an ”explosion” question. A 30-06 caliber hunting rifle fires a bullet of mass 0.0164 kg with... A 30-06 caliber hunting rifle fires a bullet of mass 0.00829 kg with a velocity of 662 m/s to the...