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ki77a [65]
3 years ago
14

If you walk 3.0 km to the east and then 4.0 km to the north, what is the magnitude of your displacement from your original posit

ion? 7.0 km 1.0 km 5.0 km 0.0 km
Physics
1 answer:
docker41 [41]3 years ago
3 0
By Pythagoras Theorem,
Displacement=((4^2)+(3^2))^0.5=5km
Answer is 5km.
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Answer:

Weight on Earth = We = 186.2 N

Weight on Mars = Wm = 70.94 N

Explanation:

The weight of an object is defined as the force applied on the object by the gravitational field. The magnitude of weight is given by the following formula:

W = mg

were,

W= Weight of Eric

m = mass of Eric

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ON EARTH:

W = We = Eric's Weight on Earth = ?

m = Eric's Mass on Earth = 19 kg

ge = acceleration due to gravity on Earth = 9.8 m/s²

Therefore,

We = (19 kg)(9.8 m/s²)

<u>We = 186.2 N</u>

<u></u>

ON MARS:

W = Wm = Eric's Weight on Mars = ?

m = Eric's Mass on Mars = 19 kg

gm = acceleration due to gravity on Mars = 0.381(ge) = (0.381)9.8 m/s² = 3.733 m/s²

Therefore,

Wm = (19 kg)(3.733 m/s²)

<u>Wm = 70.94 N</u>

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