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Katarina [22]
3 years ago
12

In a completely frictionless Newton's Cradle toy, the change in speed of the balls coming in and those going out is zero. This i

s because the net force at the time of the collisions is equal to the weight of the number of balls interacting. True False
Physics
1 answer:
BlackZzzverrR [31]3 years ago
3 0

Answer:

False. The net force is Zero

Explanation:

To answer this question we propose the solution of the problem.

 We have a toy where balls come in and out after crashes between them, this toy forms our system, so all the balls are parts of the system, when the balls collide with each other according to Newton's third law force and action and reaction, so it has the same magnitude, but opposite direction, this is each is applied to some of the objects.

In conclusion of the previous one for the system the net force is Zero, all are internal. Therefore, the only thing that happens is a redistribution of speeds according to the conservation of the moment.

Let's review the answer.

False. The net force is Zero

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Explanation:

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v^2-u^2=2as\\\Rightarrow a=\frac{v^2-u^2}{2s}\\\Rightarrow a=\frac{0^2-18.2^2}{2\times 162}\\\Rightarrow a=-1.02234\ m/s^2

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The thrust needed to reduce the velocity to zero at the instant when the craft touches the lunar surface is 21870.3156 N

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