What is the pebble speed? Answer with the appropriate units
What is the pebble speed? Answer with the appropriate units: Your roommate is working on his bicycle despite the fact that it is upside down. A pebble passes by three times every second as your friend spins the wheel with a diameter of 62.0 cm. How fast is the pebble moving? Can you tell me what its speed is?
The angular speed is given in radians if the pebble goes by 3 times per second:
3 rev/s*2π = 18.84 rad/s
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What is the pebble’s speed? Express your answer with the appropriate units
The following formula can be used to calculate tangential speed:
v = rω v = (0.62/2)18.84 rad/s v = 5.84 m/s
Acceleration can be found with:
a = v^2/r
a = 5.84^2/(0.62/2)
a = 110 m/s^2
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