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2 years ago

A bird flies 2 km to the south then 0.2 km to the north . What is the displacement of the bird?

2 answers:

8 0

The displacement of the bird is 1.8 km...because displacement is the distanse of the object from mean position to the travelled position.....hope it helps

NARA [144]2 years ago

4 0

Answer:

1.8 km south

Explanation:

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2 years ago

Which applied force will allow a 7.65 kg block of ice to begin sliding on a sheet of ice? The block of ice has a kinetic coeffic

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Answer:

force for start moving is 7.49 N

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Explanation:

given data

mass = 7.65 kg

kinetic coefficient of friction = 0.030

static coefficient of friction = 0.10

solution

we get here first weight of block of ice that is

weight of block of ice = mass × g

weight of block of ice = 7.65 × 9.8 = 74.97 N

so here Ff = Fa

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Fa = weight × static coefficient of friction

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