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Vika [28.1K]
2 years ago
13

What is the mass of a cannonball if a force of 2,500 N gives the cannonball an acceleration of 200 m/s2? Question 5 options: 15.

0 kg 12. 5 kg 20 kg 25 kg.
Physics
1 answer:
djverab [1.8K]2 years ago
8 0

The mass of the given cannonball is 12.5 kg. Option B is correct.

<h3>What is Acceleration?</h3>

It is defined as the change in the direction and speed of the object. It is a vector quantity.

From, Newton's second law of motion

F = ma

Where,

F - force = 2,500 N

m - mass

a - acceleration =  200 m/s²


Put the values in the formula,

2500 = m \times 200 \\\\&#10;m = \dfrac {2500}{200}\\\\&#10;m = 12.5\rm \  kg &#10;

Therefore, the mass of the given cannonball is 12.5 kg.

Learn more about Acceleration:

brainly.com/question/2437624

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Based off the word "conserved" I would say

A. Conservation of Momentum.

Explanation:

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Reducing Sliding Friction. You can reduce the resistive force of sliding friction by applying lubrication between the two surfaces in contact, by using rollers, or by decreasing the normal force

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A dog is 60m away while moving at constant velocity of 10m/s towards you. Where is the dog after 4 seconds?
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20m away

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The Coefficient of kinetic friction between the tires of your car and the roadway is \"μ\". (a) If your initial speed is \"v\" a
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Will mark as brainliest if correct!!!!!!!
lutik1710 [3]

C. A could be ruby (speed of light = 170,000 km/s); B could be diamond (speed of light = 120,000 km/s).

Explanation:

Refraction is a phenomenon that occurs when a light rays crosses the boundary between two different mediums.

When this occurs, the light wave changes speed and also direction, according to Snell's law:

n_1 sin \theta_1 = n_2 sin \theta_2 (1)

where

n_1 is the index of refraction of the first medium

n_2 is the index of refraction of the second medium

\theta_1 is the angle of incidence (the angle between the incident ray and the normal to the boundary)

\theta_2 is the angle of refraction (the angle between the refracted ray and the normal to the boundary)

The index of refraction is the ratio between the speed of light in a vacuum (c) and the speed of light in the medium (v):

n=\frac{c}{v}

Using this definition, we can rewrite eq.(1) as

\frac{\sin \theta_2}{\sin \theta_1} = \frac{v_2}{v_1}

Where v_2 is the speed of light in the 2nd medium and v_1 the speed of light in the 1st medium.

Now let's analyze the situation represented in the figure: we see that as the light ray enters the 2nd medium, it bends towards the normal, this means that the angle of refraction is smaller than the angle of incidence:

\theta_2 < \theta_1

This means that

\frac{\sin \theta_2}{\sin \theta_1}

And therefore,

\frac{v_2}{v_1}

So, the speed of light in the second medium is smaller than the speed of light in the first medium: this occurs only in option C), which is therefore the correct choice.

Learn more about refraction:

brainly.com/question/3183125

brainly.com/question/12370040

#LearnwithBrainly

6 0
3 years ago
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