Concept explainers
To choose: The correct option.
Answer to Problem 2STP
The correct option is (B), 20 m.
Explanation of Solution
Given:
The acceleration is
Formula used:
The position of any object moving with a constant acceleration can be expressed in terms of initial position
Here
Calculation:
Since the sprinter starts from rest, so his initial position and velocity are zero.
Thus the final position or thus the distance travelled is given by
Substituting the given value of acceleration and the time taken, the distance travelled is given by,
Conclusion:
Thus, the correct option representing the distance travelled by the sprinter is (B), 20 m.
Chapter 4 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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