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Chapter 1: Q10CP (page 18)

A snail moved 80 cm (80 centimeters) in 5 minutes. What was its average speed in SI units? Write out the factors as was done above.

Short Answer

Expert verified

Average speed in SI units is 2.667脳10-3ms-1.

Step by step solution

01

Definition of the average speed

The average speed of a moving body is computed by dividing the entire distance travelled by the total time it takes to travel that distance which is given by,

Averagespeed=TotalDistanceTotalTimetaken

Average speed and average velocity are two different terms.

02

Calculation of average speed

From the given information, the distance travelled is d = 80 cm and the time taken is t = 5 min.

Divide the distance by time to get the average speed.

v=805=16cm/min

Divide the obtained result by 60 seconds and 100 cm to convert the unit into meter per second.

16cmmin1min60s1m100cm=2.667脳10-3ms-1

Therefore, the average speed in SI units is 2.667脳10-3ms-1.

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