Question

If the same student from problem 13 ran 300 m in 30 seconds the next day, by how much did her speed increase?

(A) 1.7 m/s
(B) 2.0 m/s
(C) 2.3 m/s
(D) 2.6 m/s

Answer 1

To calculate the speed increase, you subtract the original speed (unknown from problem 13) from the new speed, which is 10 m/s. The result should match one of the answer options provided.

This correct answer is none of the above.

Step-by-step explanation:

Calculating Speed Increase

To answer the question, we first need to calculate the original speed of the student using the information given in problem 13. If the student ran 300 m in 30 seconds on the next day, their speed would be:

Speed = Distance ÷ Time

Speed = 300 m ÷ 30 s = 10 m/s

Now let's assume the original speed from problem 13 (which is not provided here) is Vo. The increase in speed would be:

Speed Increase = 10 m/s - Vo

To find the correct answer from the options provided, we would subtract the original speed (Vo) from 10 m/s. The result should match one of the answers provided (A, B, C, or D).

Without the speed from problem 13, we can't determine an exact value, but we understand the process of calculating the speed increase which involves subtracting the original speed from the new speed.

This correct answer is none of the above.