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At the end of a race, a runner decelerates from a velocity
Chapter 2, Problem 25(choose chapter or problem)
QUESTION:
Problem 25PE
At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s2 . (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense?
Questions & Answers
QUESTION:
Problem 25PE
At the end of a race, a runner decelerates from a velocity of 9.00 m/s at a rate of 2.00 m/s2 . (a) How far does she travel in the next 5.00 s? (b) What is her final velocity? (c) Evaluate the result. Does it make sense?
ANSWER:
Solution
Step 1
The distance of the uniformly accelerated motion is given by.
And the velocity equation is