Question

Define the variables in the problem.

A ball rolls at an average velocity
of 1.75 m/s for 5.20 s.
What is the displacement of the ball?
At=[?]s
Hint: Positive velocities are shown with (+);
Negative velocites are shown with (-)

Answer 1

The variables in the problem are:

- Average velocity (v) of the ball, which is given as 1.75 m/s
- Time (t) for which the ball rolls, which is given as 5.20 s
- Displacement (s) of the ball, which is the change in position of the ball relative to its initial position. This is what we need to find.

To find the displacement, we can use the formula:

s = vt

This formula assumes that the velocity is constant and there is no acceleration. Since the problem does not mention any acceleration, we can use this formula.

Plugging in the given values, we get:

s = (1.75 m/s)(5.20 s)

s = 9.10m

Therefore, the displacement of the ball is 9.10 m. This means that the ball has moved 9.10 m from its initial position in the direction of its velocity.


Leave a thanks if this helps :)

Answer 2

The displacement of the ball is found by multiplying its average velocity (1.75 m/s) by the time of motion (5.20 s), resulting in a displacement of 9.10 meters.

Step-by-step explanation:

The student's question refers to calculating the displacement of a ball given its average velocity and the time it rolls. In the problem, the ball's average velocity is 1.75 m/s, and it rolls for 5.20 seconds. To find the displacement, we need to use the formula for displacement (s), which is the product of the average velocity (v) and time (t): s = v * t. Since the velocity is positive (implying that the ball is moving in a positive direction with respect to the chosen coordinate system), we can directly calculate the displacement by multiplying the given velocity and time.

Using the given values:

s = (1.75 m/s) * (5.20 s)
s = 9.10 m
The displacement of the ball, therefore, is 9.10 meters.