Question

For what values of t on the interval is the instantaneous velocity positive (the projectile moves upward)? The instantaneous velocity is positive for t greater than 11.

A) t < 11
B) t = 11
C) t > 11
D) t ≤ 11

Answer 1

The instantaneous velocity of a projectile is positive for times greater than 11. Velocity is a vector quantity describing the rate at which an object changes its position concerning a reference point. The correct answer is C) t > 11.

Step-by-step explanation:

The velocity of an object at a specific instant in time is known as instantaneous velocity. It is the rate at which an object is changing its position at a particular moment. The instantaneous velocity can be thought of as the speed and direction of an object at an exact moment in time. It is related to the slope of the position-time graph at a specific point.

The values of t on the interval where the instantaneous velocity of a projectile is positive, meaning the projectile moves upward. As stated, the instantaneous velocity is positive for t greater than 11. Therefore, the correct answer is C) t > 11.