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1 year ago

PLEEEEEAAASSSEEE HELP ME

Physics

1 answer:

Xelga [282]1 year ago

3 0

Answer:

1) A. 0.44 m/s East + 0.33 m/s North

2) A. 0 m/s²

3) A. a scalar calculated as distance divided by time.

4) B. 31 km per hour

Explanation:

1) Velocity is DISPLACEMENT over time.

at 1 m/s, total time of walking is 9000 seconds

displacement is 3000 m north and 5000 - 1000 = 4000 m east

4000 m/ 9000 s = 0.44 m/s E

3000 m/ 9000s = 0.33 m/s N

2) constant speed means no acceleration

3) A. a scalar calculated as distance divided by time.

4) displacement 50 km N and 80 km W

v = √(50² + 80²) / (1 + 2) = 31.446603... km/hr

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Percentage Relative error=0.6

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