2 years ago

QUESTION 4

Physics

1 answer:

Artyom0805 [142]2 years ago

6 0

Answer:

I think the answer might be the first one

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When you ride a bike and make a turn, you can feel your body trying to

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Answer:first law

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it states the a body in motion or rest maintain its state until an external force is acted on it

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The layer of leaves that blocks most of the sunlight from reaching the ground in the rain forest is called the _____.

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The answer should be <span>canopy.</span>

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Which form of energy is equal to the sum of an object’s kinetic and potential energy?

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2 years ago

If the refractive index of water is 1.33, then its critical angle is...

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2 years ago

A government agency estimated that air bags have saved over 14,000 lives as of April 2004 in the United States. (They also state

balu736 [363]

To solve this problem it is necessary to apply the concepts related to momentum, momentum and Force. Mathematically the Impulse can be described as

$I = F*t$

Where,

F= Force

t= time

At the same time the moment can be described as a function of mass and velocity, that is

$P = m\Delta v \rightarrow P=m(v_1-v_2)$

Where,

m = mass

v = Velocity

From equilibrium the impulse is equal to the momentum, therefore

$I = p$

$Ft = m(v_1-v_2)$

PART A) Since the body ends at rest, we have the final speed is zero, so the momentum would be

$p=m(v_1-v_2)$

$p = 75*0.15$

$p = 1125Kg\cdot m/s$

Therefore the magnitude of the person's impulse is 1125Kg.m/s

PART B) From the equation obtained previously we have that the Force would be:

$Ft = m(v_1-v_2)$

$F(0.025)= 1125$

$F= 45000N$

Therefore the magnitude of the average force the airbag exerts on the person is 45000N

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2 years ago