Question

A runner jogs 12km North then turns and runs 16km East three hours

Answer 1

d = d1+d2 = 12 + 16 = 28km = Total distance ran.

If the time was 3h,
r = 28km/3h = 9.33 km/h = Avg. speed.

Disp. = 16 + 12i = 20km[36.9o].

V = 20km[36.9o]/3h = 6.67km/h[36.9o].

Answer 2

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Answer 3

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Answer 4

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Answer 5

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Answer 6

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Answer 7

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12+16+3-3=28

Answer 8

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Answer 9

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Answer 10

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Answer 11

A runner jogs 12 km North then turns and runs 16 km east. Calculate his average speed.

Answer 12

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Answer 13

the earth is,on average,150,million km from the sun calculate its average speed in orbit

Answer 14

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