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sasho [114]
3 years ago
8

Suppose if you whirl a yo-yo about your head in a horizontal circle. in what direction must a force act on the yoyo? What exerts

the force?
Physics
1 answer:
Rudiy273 years ago
4 0

Answer:

Direction of force towards the center and string apply the force.      

Explanation:

Lets take

Mass of yo-yo =m

Length of string = L

Angular speed = ω

The radial acceleration a = ω² L

Then the radial force on the yo yo given as

F = m ω² L

Then this radial force act towards the center of the circle formed by yo- yo.The force exerted by string.

So the direction of force towards the center and string apply the force.

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Answer:

0

Explanation:

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If I was driving at 50 miles an hour and hit a car at a stop light, how would there car react after it is hit?
MA_775_DIABLO [31]

Answer:

The answer is  C.move forward rapidly until stopped.

Explanation:

50 miles an hour is a very high speed. The momentum transfer to the car at stop light will move the car forward rapidly until its brake is able to stop it.

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3 years ago
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Question 8
Flura [38]

Answer:

3.6 s

Explanation:

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2 years ago
In the photo, a locomotive has broken through the wall of a train station. During the collision, what can be said about the forc
Pavlova-9 [17]

Answer:

Whether the force exerted by the locomotive on the wall was larger

Than the force the locomotive could exert on the wall.

Explanation:

The Newton's third law of motion States that every force have it's equal and opposite reaction force, whose magnitude is the same as the applied force. Therefore the magnitude of these opposite forces will be equal.

So we have;

F12=-F21

F12 is the force in a direction

-F21 is the force in the opposite direction.

Therefore we see that the magnitude of the force the locomotive exerts on the wall is equal to the one the wall exerts on the locomotive. Both magnitudes are equal but in opposite directions.

6 0
4 years ago
A ball is thrown upward with an initial velocity of +9.8 m/s. How high does it reach before it starts descending?
aksik [14]
Hope this helps you.

3 0
3 years ago
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