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dem82 [27]
3 years ago
5

A particle moves along a circular path with radius 3 centimeters. The particle has an angular velocity of 3π/4 radians per secon

d. What is the length of the arc, in centimeters, generated after 5 seconds? Round your answer to the nearest tenth.
Mathematics
1 answer:
Nina [5.8K]3 years ago
7 0

After 5 s, the particle traverses a path subtended by an angle of

(3π/4 rad/s) (5 s) = 15π/4 rad

Now, 15π/4 rad = 15/8 * 2π rad, so the arc has a length equal to 15/8 of the circumference of the path:

15/8 * 2π * (3 cm) = 45π/4 cm ≈ 35.3 cm

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