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pishuonlain [190]
2 years ago
5

Exam

Physics
2 answers:
Sergeeva-Olga [200]2 years ago
5 0
Answer: D- output force

Explanation: for example, you exert force on the handle of a shovel when you use it to lift soil. You exert the improve force that moves the machine on a certain distance, called the input distance. The force the machine exerts on the object (DIRT) is called the output force.
Sedaia [141]2 years ago
3 0
Out put work
explanation:
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An object at rest on a flat, horizontal surface explodes into two fragments, one seven times as massive as the other. The heavie
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Answer:

Explanation:

Given that,

One fragment is 7 times heavier than the other

Let one fragment mass be M

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And the other 7M

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Applying conservation of momentum

Momentum is given as p=mv

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Divide both sides by M

0 = 7V -v

v = 7V

Since friction decelerates the masses to zero speed, we can calculate the NET work on the individual blocks and relate this quantity to the change in kinetic energy of each block

The workdone by the 7M mass is

Distance moved by 7M mass is 6.8m, Then, d =6.8m

W = fr × d

Where fr = µkN

When N=W =mg, where m=7M

N= 7Mg

fr = −µk × 7mg

Then, W(7m) = −7µk•Mg×d

W(7m) = −7µk•Mg×6.8

W(7m) = −47.6 µk•Mg

Then, same procedure,

Let distance move by the small mass be m

Work done by M mass

W(m) = −µk•Mg×d'

Since it is a wordone by friction, that is why we have a negative sign.

Using conservation of energy

Work done by 7M mass is equal to work done by M mass

W(7m) = W(m)

−47.6 µk•Mg = −µk•Mg×d

Then, M, g and µk cancels out

We are left with

-46.7 = -d

Then, d = 46.7m

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The formula of force is newton and​
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Answer:

The formula for calculating force is F= Mass × Acceleration

Explanation:

Newton is what force is measured in

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