Q3DQ - University Physics with Modern Physics

Question

Can an object with constant acceleration reverse its direction of travel? Can it reverse its direction twice? In both cases, explain your reasoning.

Step-by-Step Solution

Answer

There is no possibility to change the direction twice with constant acceleration.

Step 1:

Acceleration is the rate by which the velocity wills changes with time with respect to both speed and direction.

Step 2: Explanation

Any object will change the direction at once with acceleration but not the second time. Because as the speed increases acceleration is positive and acceleration is negative when speed decreases.

 

Example: If an object is moving with constant magnitude and reaches its maximum height, then it will stop a moment and changes the direction of motion.