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klasskru [66]
3 years ago
9

Another athlete using a different spring exerts an average force of 400 N to enable her

Physics
1 answer:
babymother [125]3 years ago
6 0

Answer:84Nm

Explanation:

force=400N

Distance=0.210m

Workdone=force x distance

Workdone=400 x 0.210

Workdone=84Nm

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An object is dropped from rest from a height 5.6 × 106 m above the surface of the earth. If there is no air resistance, what is
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Answer:

The answer to your question is:  10.48 km/s

Explanation:

Data

h = 5.6 x 10⁶ m

g = 9.8 m/s²

Formula

                 vf = \sqrt{2gh}

Substitution

                vf = \sqrt{2(5.6 x 10^{6}) (9.81)}

                vf = \sqrt{109760000}

                vf = 10476.64 m/s

convert to km/s

               vf = 10476.64/1000

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Answer:

Point A (Maximum height)

Explanation:

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8 0
4 years ago
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A spring with a spring constant of k = 185.0 N / m is oriented vertically, with one end on the ground. What distance does the sp
uysha [10]

Answer:

The distance spring compresses (x) = 0.0811 m

Explanation:

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When mass is placed upon the spring the spring force is equal to weight of the mass.

⇒ Spring force (F) = weight of object

⇒  Spring force (F) = k × x

 And weight of the object = mg

⇒ k x =  mg -----------------(1)

Put all the values in equation (1) we get

⇒ 185 × x = 1.53 × 9.81

⇒ x = 0.0811 m

This the distance spring compresses, when mass is placed upon it.

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Answer:

42k

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