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7nadin3 [17]
3 years ago
10

_ acceleration occurs when an object speeds up. Answer Positive

Physics
2 answers:
Nina [5.8K]3 years ago
6 0

_ acceleration occurs when an object speeds up.

Answer

Positive

nydimaria [60]3 years ago
5 0

That statement is a lot like saying "A baby has two legs when it's a boy.".  The statement is true as far as it goes, but it doesn't go all the way.

Yes, speeding up is one kind of acceleration, but it's not the ONLY kind.  Slowing down and turning are also acceleration.

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Answer:

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Explanation:

The radius of the circular path the charge moves, r = 26 m

The magnetic force acting on the charge particle, F = 16 N

Centripetal force, F_c = m·v²/r

Kinetic energy, K.E. = (1/2)·m·v²

Where;

m = The mass of the charged particle

v = The velocity of the charged particle

r = The radius of the path of the charged particle

Whereby the magnetic force acting on the charge particle = The centripetal force, we have;

F = F_c = m·v²/r = 16 N

(1/2) × r × F_c = (1/2) × r × m·v²/r = (1/2)·m·v² = K.E.

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∴ 208 Joules = K.E.

The kinetic energy of an particle moving in the circular path, K.E. = 208 Joules.

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