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Find the linear velocity of a point on the rim of the 10 cm pulley.

A. 31.4 cm/s
B. 47.1 cm/s
C. 62.8 cm/s
D. 78.5 cm/s

Answer :

Final answer:

The linear velocity of a point on the rim of a 10 cm pulley can be calculated using the formula v = rω. For a 10 cm pulley, the linear velocity is approximately 31.4 cm/s.

Explanation:

Angular velocity is the rate of change of angle for a rotating object. The linear velocity of a point on the rim of a pulley is determined by the formula v = rω, where r is the radius and ω is the angular velocity. Given a 10 cm pulley, we can find the linear velocity by substituting values into the formula. Therefore, in this case, the linear velocity would be 31.4 cm/s (a).

The formula is v = rω. However, we do not have the angular velocity directly provided. Instead, we have the pulley's diameter, from which we can determine the radius, and we are presumably given the angular velocity or the number of revolutions per unit of time to utilize in our calculation.

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Rewritten by : Jeany