Explain why a roller coaster’s second hill cannot be taller than the first hill.

2 answers:

8 0

The reason behind the second hill in the roller coaster not taller than the first hill is the frictional force acting on the roller coaster.

Explanation:

The height of the first hill in the roller coaster is taller with the decrease in the subsequent hills as the frictional forces reduces the kinetic energy.

Coming down the first tallest hill, the speed and kinetic energy both increases as the motion is in line with gravity, but due to conservation of energy, the potential energy decreases. And as the potential energy decreases, the height of hill has to be decreased in order to complete the motion.

max2010maxim [7]3 years ago

4 0

There will not be enough momentum from the first hill to cross another hill if he same or larger size because of the way potential energy and kinetic energy works it will not be able go as high as it could go on he fist hill.

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Answer:

the tree's light reflects into his eyes.

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Explanation:

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The graph between the strength of the magnet(number of paper clips picked) and battery is approximately a straight line.

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3 years ago

If two cars A and B are moving with velocity 60 km/hr and 80 km/hr

Vitek1552 [10]

Answer:

VAB = 20km/hr

Explanation:

Given the following data;

Velocity of car A, VA = 60km/hr

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Since the two cars are moving in the same direction, we have;

VAB = VB - VA

Substituting into the equation, we have;

VAB = 80 - 60

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3 years ago

A small child has a wagon with a mass of 10 kilograms. The child pulls on the wagon with a force of

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$F=ma$
where:
F - force
m - mass
a - acceleration

We transform this formula to get a:
$a= \frac{F}{m}$
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