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DochEvi [55]
3 years ago
13

A shopper walks eastward 5.4 meters, then walks westward 7.8 meters eastward

Physics
1 answer:
ArbitrLikvidat [17]3 years ago
7 0

Answer:

13.2 meters

Explanation:

The distance moved or displacement is not vector. So just add 5.4 and 7.8

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A car travels 50 km in 25 km /h and then travels 60km with a velocity 20 km/h and then travels 60km with a velocity 20 km/h in t
Butoxors [25]

Answer:

v = 21.25 km/h

The average velocity is 21.25km/h

Explanation:

Average velocity = total displacement/time taken

v = d/t

Given;

A car travels 50 km in 25 km /h

d1 = 50km

v1 = 25km/h

time taken = distance/velocity

t1 = d1/v1

t1 = 50/25 = 2 hours

and then travels 60km with a velocity 20 km/h

d2 = 60km

v2 = 20km/h

t2 = d2/v2 = 60/20

t2 = 3 hours

and then travels 60km with a velocity 20 km/h in the same direction

d3 = 60km

v3 = 20km/h

t3 = d3/v3 = 60/20

t3 = 3 hours

Average velocity = total displacement/total time taken

v = (d1+d2+d3)/(t1+t2+t3)

v = (50+60+60)/(2+3+3)

v = 170/8

v = 21.25 km/h

The average velocity is 21.25km/h

3 0
3 years ago
How much physical activity should an adult have each week?
Mars2501 [29]

d 30 minutes a day , 5 days a week

4 0
4 years ago
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Nataly [62]

Answer:t=0.54 s

Explanation:

Given

Jacob is traveling 5 m/s in North direction

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3 0
3 years ago
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Which of the following waves moves the slowest?
Andrew [12]

Answer:

x rays is the correct answer

6 0
3 years ago
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