Two metal balls with the same mass hang so that they are touching each other. The ball on the left is pulled to the side and released. What will happen when it swings back and hits the ball on the right?(1 point)

Both balls will swing to the right.
Both balls will swing to the right.

The ball on the right will swing to the right.
The ball on the right will swing to the right.

Both balls will swing to the left.
Both balls will swing to the left.

The ball on the left will stop, and the ball on the right will remain still.

1 answer

When the ball on the left is pulled to the side and released, it will swing back due to gravity. Upon swinging back and colliding with the ball on the right, two metal balls of the same mass will transfer momentum upon impact.

Since both balls are of the same mass and the left ball is in motion while the right ball is at rest, the collision will result in the ball on the left stopping and the ball on the right gaining the kinetic energy of the left ball.

Thus, the correct conclusion is: The ball on the left will stop, and the ball on the right will swing to the right.