Question:
A rifle bullet with a muzzle speed of 330 m/s is fired directly into a special dense material that stops the bullet in 25 cm. Assuming the bullet's deceleration to be constant, what is its magnitude?
This graph shows how the bullet is decelerating. The parabolic shape can be described by the bullet traveling to the right. The curve shape is caused by the slowing down of the bullet. It gets flatter at the end because it travels slower as time goes on.
This graph shows the slope of the xt and the starting velocity of the bullet as the bullet is slowing down. The bullet is moving to the right and is above the time-axis. At time zero, the velocity is 330 m/s.
The acceleration is the slope of velocity. the acceleration is negative because the velocity is decreasing. Gravity is puling the bullet down at a constant rate.