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nignag [31]
3 years ago
12

A woodchuck runs 20 m to the right in 5 s, then turns and runs 10 m to the left in 3 s. (a) What is the average velocity of the

woodchuck? (b) What is its average speed?
Mathematics
1 answer:
Archy [21]3 years ago
3 0

Answer:

<h2>a) Average velocity = 1.25 m/s to the right</h2><h2>b) Average speed = 3.75 m/s</h2>

Step-by-step explanation:

A woodchuck runs 20 m to the right in 5 s, then turns and runs 10 m to the left in 3 s.

Total displacement = 20 - 10 = 10 m to the right

Total time = 5+3 = 8 s

Total distance = 20 + 10 = 30 m

a) We have

         Total displacement = Average velocity x Time

         10 = Average velocity x 8

         Average velocity = 1.25 m/s to the right

b)We have

         Total distance = Average speed x Time

         30 = Average speed x 8

         Average speed = 3.75 m/s

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Answer:

For A) it is possible that the speed  the cat is going over the speed limit

For B) The statement is false as if the error is negative, the speed of the car will be less than the speed limit.

Step-by-step explanation:

Data provided in the question:

Maximum error  on a car speedometer = 1.6% = 0.016

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Now,

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Now,

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The possible speed of the car can be

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or

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Hence,

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For B) The statement is false as if the error is negative, the speed of the car will be less than the speed limit.

3 0
4 years ago
Giving brainliest Help please
Inga [223]

Answer: -11/12

I only know this because of a song my math teacher made. I don't have an explanation, good luck

4 0
3 years ago
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Solution:

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Hope the solution given above will help you understand the question!

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