Question

A ball starts rolling down a slope as shown in the figure below. All units shown are in meters. The floor has very little friction. Which of the following is true after a long time?

• A. The ball will come to rest at P
• B. The ball will come to rest at Q
• C. The ball will come to rest at R
• D. The ball will continue to be in motion at point S

Hint:

In low friction conditions, an object will keep moving unless it encounters a stop or change in the surface.

Answer 1

The Correct Option is D

Step 1: Analyzing the slope.
The ball is rolling down a slope with very little friction. As there is little friction, the ball will maintain its motion unless an obstacle or an incline prevents it.
Step 2: Understanding the behavior of the ball.
- The ball will continue rolling until it reaches a flat surface or an incline where it can maintain motion. - Point S lies at the end of the slope, and there is no indication of a stop, so the ball will continue to be in motion there.
\[ \boxed{(D) \, \text{The ball will continue to be in motion at point S.}} \]