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photoshop1234 [79]
3 years ago
15

If a bus you are riding is traveling at a constant speed and then stops suddenly, you feel "thrown" forward. Which of the follow

ing is true at the instant the bus begins to stop? Assume the seat is frictionless and that you are not wearing a seatbelt.
Select one:

a. You slide forward on the frictionless seat at the same velocity that the bus was traveling prior to the stop.

b. A force is throwing you forward.

c. You are accelerating (remember, there is acceleration when velocities are changing).
Physics
1 answer:
zzz [600]3 years ago
6 0

Answer:

Option A

You slide forward on the frictionless seat at the same velocity that the bus was traveling prior to the stop

Explanation:

From the law of inertia, an object will remain at rest or move at a constant speed in a straight line unless it is acted on by an unbalanced force. Since you were riding, you will maintain the speed of car even after application of instantaneous brakes. In the process, you slide forward on the frictionless seat at the same velocity that the bus was traveling prior to the stop.

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A massless string connects a 10.00 kg mass to a 13.00 kg cart which is resting on a frictionless horizontal surface. The mass ha
ch4aika [34]

The cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

<h3>Acceleration of the cart</h3>

The acceleration of the cart is determined from the net force acting on the mass-cart system.

Upward force = Downward force

ma = mg

13a = 10(9.8)

13a = 98

a = 98/13

a = 7.54 m/s²

Thus, the cart's acceleration to the right after the mass is released  is determined as 7.54 m/s².

Learn more about acceleration here: brainly.com/question/14344386

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2 years ago
A 900 N student runs up the stairs 3.5 m high in 12<br> seconds. How much POWER do they generate?
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4 0
3 years ago
At which temperature does the molecules of an object stop moving?
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Answer:

at the melting point and boiling point

Explanation:

the heat abdorbed is used to break down the forces holding the particles together to allow it to change its state

7 0
3 years ago
Calculate the force needed to accelerate a car of a mass 1000 kg by 3 m/s2
beks73 [17]

Answer:

<h2>3000 N</h2>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

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We have the final answer as

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Hope this helps you

5 0
3 years ago
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astra-53 [7]

The correct answer is Model A shows the three-dimensional shape of the molecule, but Model B does not.

Explanation:

Model A and B show the structure of a molecule. In the case of model A, the structure is represented through the use of three-dimensional shapes, while in model B the structure is represented using the letters of each element and showing how each element is connected to others.

In this context, one feature that makes model A better is that this represents the molecule using a 3D model, which is better to understand how the molecule looks like and what is its structure. Moreover, both models are alike because they show the number of atoms of each element, although model A does not show the types of elements.

7 0
3 years ago
Read 2 more answers
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