Question

Explain a possible situation where you start with a positive velocity that decreases to a negative increasing velocity while there is a constant negative acceleration.

Answer 1

Throwing an object upwards.

Step-by-step explanation:

When an object is thrown upwards, initially its velocity is zero then due to throw the it travels with some velocity, high at the start as the acceleration is also in upward direction against the acceleration due to gravity which starts reducing the velocity of the object as it gains height and this positive velocity reduces to zero at the maximum height attained by the object that is where the body descends.

Now, when the object is coming back downwards with only acceleration due to gravity acting on it which is a constant negative acceleration, the velocity of the object increases as it comes close to the surface before hitting the surface.

Therefore, this situation depicts the scenario where the object starts with negative velocity that reduces under the action of negative acceleration.