Question

1. a car is moving forward and applying the break. which position - time graph best depicts this motion?

Explanation:

Step1: Analyze the motion

The car is moving forward initially (positive - velocity, so position increases with time) and then applies the brake. When braking, the velocity decreases (negative - acceleration), and the rate of increase of position slows down.

Step2: Evaluate the graphs

A straight - line graph represents a constant velocity. A curved graph with an increasing slope represents a positive acceleration, and a curved graph with a decreasing slope represents a negative acceleration. The car's motion should be represented by a graph that first has a positive slope (moving forward) and then the slope decreases as the brake is applied.

Answer:

H