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Blizzard [7]
3 years ago
7

If the acceleration of a moving object is zero, which of the following best describes its motion

Physics
2 answers:
podryga [215]3 years ago
7 0
If the acceleration of a moving object is zero, the object remains at a constant speed (without friction)
Morgarella [4.7K]3 years ago
3 0

Answer:

Explanation:

According to the newton's second law, the force exerted on an object is equal to the product of the mass of the body and the acceleration of the body.

F = m x a

Where, F is the force and a be the acceleration and m be the mass of the body.

Acceleration is defined as the rate of change of velocity of the body.

As acceleration is zero, so

a = 0

v - u = 0

Where, v is the final velocity of the body and u be the initial velocity of the body.

It means the body is moving with uniform velocity.

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Jack and Jill have made up since the previous HW assignment, and are now playing on a 10 meter seesaw. Jill is sitting on one en
Airida [17]

Answer: 3 m.

Explanation:

Neglecting the mass of the seesaw, in order the seesaw to be balanced, the sum of the torques created by  gravity acting on both children  must be 0.

As we are asked to locate Jack at some distance from the fulcrum, we can take torques regarding the fulcrum, which is located at just in the middle of the length of the seesaw.

If we choose the counterclockwise direction as positive, we can write the torque equation as follows (assuming that Jill sits at the left end of the seesaw):

mJill* 5m -mJack* d = 0

60 kg*5 m -100 kg* d =0

Solving for d:

d = 3 m.

6 0
3 years ago
The molecule of magnet are independent _____________​
Bas_tet [7]

Answer:

The first is the electric field, which describes the force acting on a stationary charge and gives the component of the force that is independent of motion. The magnetic field, in contrast, describes the component of the force that is proportional to both the speed and direction of charged particles.

4 0
3 years ago
8) In a bumper car arena, two cars of equal mass are heading straight toward each other. The orange car is traveling at a veloci
Ghella [55]

The answer is D) Niether . I just took the test

3 0
3 years ago
How does an increase in thermal energy affect the state of matter?
shusha [124]

Answer:

When thermal energy is added to a substance, its temperature increases, which can change its state from solid to liquid (melting), liquid to gas (vaporization), or solid to gas (sublimation). ... When the pressure exerted on a substance increases, it can cause the substance to condense.

Explanation:

Hope it will help use

8 0
3 years ago
PLEASE HELP
jasenka [17]
Don't over think it!

For example, if you do 5 laps in 5 minutes then you do one lap per minute. If you use that example and you apply it to your problem you'll notice that the answer is simply C. 1km/min.

Best wishes!
4 0
3 years ago
Read 2 more answers
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