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USPshnik [31]
3 years ago
8

The force you have to overcome to start an object moving is _____

Physics
1 answer:
MAVERICK [17]3 years ago
3 0
The forece you have to overcome to start an object moving is called Inertia.
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Answer:

0.16joules

Explanation:

Using the relation for The gravitational potential energy

E= Mgh

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h= sin theta

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Using energy considerations, calculate the average force (in N) a 67.0 kg sprinter exerts backward on the track to accelerate fr
Illusion [34]

Answer:

F_{sprinter}=110.4N

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W=F_{total}.d

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W=1/2mv_{f}^2-1/2mv_{i}^2\\F_{total}=\frac{1/2mv_{f}^2-1/2mv_{i}^2}{d} \\F_{total}=\frac{1/2(67.0kg)(8.00m/s)^2-1/2(67.0kg)(2.00m/s)^2}{25.0m} \\F_{total}=80.4N

and we know that the force the sprinter exerted Fsprinter the force of the headwind Fwind=30.0N

So

F_{sprinter}=F_{total}+F_{wind}\\F_{sprinter}=80.4N+30N\\F_{sprinter}=110.4N  

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2 years ago
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