Ask Question
30 October, 17:19

A child riding a bicycle at 15 meters per second

accelerates at - 3.0 meters per second2 for

4.0 seconds. What is the child's speed at the end

of this 4.0-second interval?

(1) 12 m/s (3) 3.0 m/s

(2) 27 m/s (4) 7.0 m/s

+4
Answers (1)
  1. 30 October, 17:39
    0
    In this question, all the important information's are already provided. Based on those information's the answer to the question can be easily determined. Let us now note down all the information's given in the question.

    Initial velocity (u) = 15 m/s

    Acceleration (a) = - 3.0 m/s^2

    Time (t) = 4 second.

    Then

    final velocity (v) = u + at

    = 15 + [ (-3.0) * 4]

    = 15 - 12

    = 3 m/s^2

    So the final speed of the bicycle would be 3 m/s^2. So the correct option among all the options given in the question is option "3". I hope the procedure is clear to you.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “A child riding a bicycle at 15 meters per second accelerates at - 3.0 meters per second2 for 4.0 seconds. What is the child's speed at the ...” in 📗 Physics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers