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A ball is released from rest and rolls 0.5m in 2 seconds. That average speed of the ball is?Question 13Answera.2 m/sb.1 m/sc.2.5 m/sd.0.25 m/se.0.5 m/s

Question

A ball is released from rest and rolls 0.5m in 2 seconds. What is the average speed of the ball?

Options:

  • a. 2 m/s
  • b. 1 m/s
  • c. 2.5 m/s
  • d. 0.25 m/s
  • e. 0.5 m/s
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Solution

1. Break Down the Problem

To find the average speed of the ball, we need to understand the formula for average speed:

Average Speed=Total DistanceTotal Time \text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}

2. Relevant Concepts

In this case, the Total Distance traveled by the ball is 0.5 m, and the Total Time taken is 2 seconds.

3. Analysis and Detail

Now, we can plug the values into the formula:

Average Speed=0.5m2s=0.25m/s \text{Average Speed} = \frac{0.5 \, \text{m}}{2 \, \text{s}} = 0.25 \, \text{m/s}

4. Verify and Summarize

We calculated the average speed by dividing the distance by the time. The calculated average speed is 0.25m/s 0.25 \, \text{m/s} , which matches one of the options provided.

Final Answer

The average speed of the ball is 0.25 m/s (option d).

This problem has been solved

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