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Murljashka [212]
3 years ago
12

How is momentum conserved in a Newton's cradle when one steel ball hits the other?

Physics
2 answers:
weeeeeb [17]3 years ago
8 0

Answer:

4. All the momentum starts in one ball, and after the collision, it is all in the other ball.

Explanation:

All the momentum starts in the first ball (the one is moving) . When this ball collides with the second ball, the first ball stops but its momentum it is transferred to the second ball, then to the third then fourth until it reaches the very last ball. Only the last ball has momentum now because is the only one moving.

lora16 [44]3 years ago
7 0

Answer:Both balls have momentum to start,and they share it after collision

Explanation:both balls have momentum to start and they share it after collision

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Red clothes will---the red light.A)Reflect B)refract C)Absorb D)transmission E)Dispersion
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7 0
3 years ago
A 30.0 kg box hangs from a rope. What is the tension (in N) in the rope if the box has an initial velocity of 2.0 m/s and is slo
hjlf

Answer:

360 N

Explanation:

m = 30kg    u = 2 m/s     a = -2m/s/s

Since the object has an initial velocity of 2 m/s and acceleration of -2 m/s/s

the object will come to rest in 1 second but the force applied in that one second can be calculated by:

F = ma

F = 30 * -2

F = -60 N (the negative sign tells us that the force is acting downwards)

Now, calculating the force applied on the box due to gravity

letting g = -10m/s/s

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F = -300 N (the negative sign tells us that the force is acting downwards)

Now, calculating the total downward force:

-300 + (-60) = -360 N

<em></em>

<em>Hence, a downward force of 360 N is being applied on the box and since the box did not disconnect from the rope, the rope applied the same amount of force in the opposite direction</em>

Therefore tension on the force = <u>360 N</u>

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3 years ago
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