When a rifle is fired how does the size of the force of the rifle on the bullet compare with the force of the bullet on the rifle how does the acceleration of the rifle compare with that of the bullet?
The force of the rifle on the bullet and the force of the bullet on the rifle are equal in magnitude but opposite in direction, according to Newton's third law of motion. However, the mass of the rifle is much larger than the mass of the bullet, so the acceleration of the rifle is much smaller compared to the acceleration of the bullet.