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avanturin [10]
3 years ago
12

A school bus is moving at a constant velocity of 30 m/s, East. Which statement best describes the motion of the truck?

Physics
2 answers:
Delvig [45]3 years ago
5 0

Answer:

that the truck seems to be moving around the same rate

zzz [600]3 years ago
4 0

Answer:

The car appears to be moving 30 km/hr in the opposite direction of the bus.

Explanation:

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A small car has a head-on collision with a large truck. Which of the following statements concerning the magnitude of the averag
andrey2020 [161]

Answer:

The small car and the truck experience the same average force.

Explanation:

Here we need to remember two of Newton's laws.

The second one says that:

F = m*a

force equals mass times acceleration.

And the third one says that;

"If an object A exerts a force on object B, then object B must exert a force of equal magnitude and opposite direction back on object A"

From the third law, if the car experiences a force F due to the impact with the truck, then the truck experiences the same force F due to the impact.

But this seems odd, because we would expect to see the car being more affected by the impact, right?

Well, this is explained by the second law.

Suppose that the mass of the car is m, and the mass of the truck is M.

such that M > m

Then for the small car we have:

F = m*a

And for the truck:

F = M*a'

Because the force is the same for both of them, we can write:

m*a = M*a'

a = (M/m)*a'

because M > m, then M/m > 1.

This means that the acceleration that the car experiences is larger than the acceleration for the truck, and this is why we would see that the car seems more affected by the impact, regardless of the fact that both vehicles experience the same force in the impact.

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The total amount of kinetic energy and potential energy within a system is called Question 4 options: A. thermal energy B.electr
dolphi86 [110]
I'm pretty sure the answer is C. :)
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kenny6666 [7]

I do not agree with the statement.
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as long as there's nothing else in it but its name.

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These example substances are all compounds, not elements.
 
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The greater the temperature, the greater the volume - this is Charles's law, said by Jacques Charles, a French inventor, scientist, and mathematician. 
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3 years ago
Read 2 more answers
When gravity increases what happens to weight?
Fynjy0 [20]
Weight increases but mass stays the same
7 0
3 years ago
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