Question
Asked Jan 25, 2019
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A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 1.0 minutes
The tortoise wins by a shell (40 cm)
(a) How long does the race take?
(b) What is the length of the race?
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A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 1.0 minutes The tortoise wins by a shell (40 cm) (a) How long does the race take? (b) What is the length of the race?

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Expert Answer

Step 1

(a) The difference between the distances travelled by tortoise and hare is equal to 40 cm.  Distance can be expressed as the product of speedand time. The variables that are to be used are - distance travelled by tortoise dt , distance travelled by hare dh ,time taken for tortoise t and speed of tortoise v. Speed of hare is 20v.

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Step 2

Substituting the given values and re-arranging,

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Step 3

(b)The expression for length of the race is equal ...

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