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Butoxors [25]
2 years ago
13

Question 6 (1 point)

Physics
1 answer:
jarptica [38.1K]2 years ago
8 0

Explanation:

decrease,then increase

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How much force is needed to accelerate a 1-kilogram toy car at a rate of 2 meters per second per second?
kozerog [31]
F = ma,    where m = mass in kg, a = acceleration in m/s², F = Force in Newton

F = 1 * 2

F = 2 N

Force needed is 2 Newtons.
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In what frame of reference would you be at rest while riding in a car?
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In the frame of reference of anybody in the car.

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Supposing you were in space..in a weightless environment, would it require a force to set an object in motion? Explain..
Dvinal [7]

Answer:

Yes, a force is require to set an object in motion.

Explanation:

  • In space, even if you feel weightless, you are subject to motion. If you are orbiting the Earth, you are under the constant influence of Earth having a free-fall acceleration equal to the centripetal acceleration.
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8 0
3 years ago
PLEASE HURRY THIS IS URGENT
Irina-Kira [14]

3. Rubbing Sticks together to create a fire.


5. Gravity.

7 0
2 years ago
A certain string just breaks when it is under400N of tension.
OLEGan [10]

Answer:

The string will break with a speed of 20 m/s.

Explanation:

It is given that,

Tension at which the string just breaks, T = 400 N

Mass of the stone, m = 10 kg

Radius of the circle, r = 10 m

We need to find the speed at which the string will break. The boy continuously increases the speed of the  stone. The tension acting on the stone is equal to the centripetal force. It is a force that acts towards the center of circle. It is given by :

T=F=\dfrac{mv^2}{r}

v=\sqrt{\dfrac{Tr}{m}}

v=\sqrt{\dfrac{400\ N\times 10\ m}{10\ kg}}

v = 20 m/s

So, the string will break with a speed of 20 m/s. Hence, this is the required solution.

4 0
3 years ago
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