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Nina [5.8K]
3 years ago
6

if a ball on a string swung in a circles and string suddenly breaks.the ball will move into what direction?

Physics
1 answer:
Akimi4 [234]3 years ago
3 0

Answer: b

Explanation: did the quiz got it right

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The blades in a blender rotate at a rate of 6100 rpm. When the motor is turned off during operation, the blades slow to rest in
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Answer:

<em>155.80rad/s</em>

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Using the equation of motion to find the angular acceleration:

\omega_f = \omega_i + \alpha t

\omega_f is the final angular velocity in rad/s

\omega_i  is the initial angular velocity in rad/s

\alpha is the angular acceleration

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\omega_f = 6100rpm

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6100rpm = x

x = 6100 * 0.10472

x  = 638.792rad/s

\omega_f = 638.792rad/s\\

Get the angular acceleration:

Recall that:

\omega_f = \omega_i + \alpha t

638.792 = 0 + ∝(4.1)

4.1∝ = 638.792

∝ = 638.792/4.1

∝ = 155.80rad/s

<em>Hence the angular acceleration as the blades slow down is 155.80rad/s</em>

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