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bulgar [2K]
3 years ago
6

A locomotive engine pulls a train with a constant force comment on whether its acceleration will increase or decrease if more co

aches are added to the train
Physics
1 answer:
julia-pushkina [17]3 years ago
7 0

Explanation:

the acceleration will be unchanged according to newton second law of motion

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A coin is placed on a large disk which rotates uniformly at a rate of 1 rot/s. The coefficient of friction between the coin and
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Answer:

r = 0.02 m

Explanation:

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to get how far from the center of the disk the coin can be placed without having to slip off we equate the formula for the centrifugal force with the frictional force on the turntable force

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v^2 / r =  g x μ  .......equation 1

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velocity = 6.28 x r = 6.28 r

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