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anyanavicka [17]
3 years ago
10

A car carrying a 71 kg test dummy crashed into a wall at 24m/s and is brought to rest in .10s. What is the magnitude of the aver

age force exerted by the seat belt on the dummy
Physics
1 answer:
Morgarella [4.7K]3 years ago
3 0

The answer for the following problem is mentioned below.

  • <u><em>Therefore the force exerted by the seat belt on the dummy is 170.4 N  </em></u>

Explanation:

Given:

mass of the dummy (m) = 71 kg

velocity of the dummy (v) = 24 m/s

time (t) = 10 seconds

To solve:

Average force exerted (F)

We know;

To calculate the average force;

According to the formula;

<u>F = (m × v) ÷ t</u>

Where;

F represents the force exerted

m represents the mass of the dummy

v represents the velocity

t represents the time

F = \frac{m*v}{t}

F = \frac{71*24}{10}

F = \frac{1704}{10}

F = 170.4 N

<u><em>Therefore the force exerted by the seat belt on the dummy is 170.4 N  </em></u>

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A pipe is horizontal and carries oil that has a viscosity of 0.14 Pa s. The volume flow rate of the oil is 5.3 × 10-5 m3/s. The
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Answer:

Explanation:

Given

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According to Hagen-Poiseuille Equation

difference in Pressure is given

\Delta P=\frac{128\mu L\cdot Q}{\pi D^4}

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P_{in}=1.01325\times 10^5+\frac{128\times 0.14\times 37\times 5.3\times 10^{-5}}{\pi\cdot 1.16^4\times 10^{-8}}

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3 0
3 years ago
Which of the following objects would have the strongest gravitational pull on a third object positioned at an equal distance fro
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I believe Box B will have a greater gravitational pull because the gravitational pull of an object depends on its mass. The more mass an object has, the greater its gravitational pull will become.

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8 0
3 years ago
A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. Complete the following statemen
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Answer:

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A ball is whirled on the end of a string in a horizontal circle of radius R at constant speed v. The centripetal acceleration is given by :

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7 0
3 years ago
A 0.12 kg bird is flying at a constant speed of 7.8 m/s. what is the birds conetic energy?
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KE=1/2mv^2 - equation for kinetic energy
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Hope this helps
7 0
4 years ago
Read 2 more answers
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