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Debora [2.8K]
2 years ago
8

một hòn đá ném theo phương nằm ngang với vân tốc v0=15 m/s. tính gia tốc tiếp tuyến và gia tốc pháp tuyến của hòn đá sau lúc ném

1 giây.
Physics
1 answer:
Lady_Fox [76]2 years ago
5 0

Answer:

what language is this???

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Explanation:

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Which of Newton's laws accounts for the following statement? "A force cannot act alone."
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<span>"A force is required to cause motion to deviate from a straight line.</span>
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Starting at t = 0 s , a horizontal net force F⃗ =( 0.285 N/s )ti^+(-0.460 N/s2 )t2j^ is applied to a box that has an initial mom
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Answer:

Explanation:

We know that Impulse = force x time

impulse = change in momentum

change in momentum = force x time

Force F = .285 t -.46t²

Since force is variable

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change in momentum = .285 x 1.9² /2 i  -  .46 x 1.9³ / 3 j

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3 years ago
) Un círculo de 120 cm de radio gira a 600 rpm. Calcula: a) su velocidad angular
DIA [1.3K]

Responder:

20πrads ^ -1; 24πrads ^ -1; 0,1 seg; 10 Hz

Explicación:

Dado lo siguiente:

Radio (r) del círculo = 120 cm

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C.) Período (T):

T = 2π / w = 2π / 20π = 0.1 seg

D.) Frecuencia (f):

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