Yelena is driving her car on a dry, non-slippery road. The car moves forward wit
ID: 1282851 • Letter: Y
Question
Yelena is driving her car on a dry, non-slippery road. The car moves forward with a speed of 34.1 m/s. What is the centripetal acceleration of the tire which has a radius of 0.45m? Answer ______ m/s^2
Arek is riding her bicycle on a non-slippery bike path. The wheel has a radius of 677 mm. The bike moves forward at 9.25 m/s. What is the wheels centripetal acceleration? Answer ______ m/s^2
Jolie the hamster is using his hamster wheel which has a diameter of 26.6 cm. a point on the wheel is moving at 0.19 m/s. What is the hamster wheels centripetal acceleration? Answer ______ m/s^2
This question is three parts, please answer all three Calculate the centripetal acceleration, ac, of various objects. Yelena is driving her car on a dry, non-slippery road. The car moves forward with a speed of 34.1 m/s. What is the centripetal acceleration of the tire which has a radius of 0.45m? Answer ______ m/s^2 Arek is riding her bicycle on a non-slippery bike path. The wheel has a radius of 677 mm. The bike moves forward at 9.25 m/s. What is the wheels centripetal acceleration? Answer ______ m/s^2 Jolie the hamster is using his hamster wheel which has a diameter of 26.6 cm. a point on the wheel is moving at 0.19 m/s. What is the hamster wheels centripetal acceleration? Answer ______ m/s^2 This question is three parts, please answer all three
Explanation / Answer
Ac = v^2/r
Yelena is driving her car on a dry, non-slippery road. The car moves forward with a speed of 34.1 m/s. What is the centripetal acceleration of the tire which has a radius of 0.45m?
v = 34.1 m/s and r = 045 m
Ac = 34.1 * 34.1 / 0.45 = 2584 m/s^2
Arek is riding her bicycle on a non-slippery bike path. The wheel has a radius of 677 mm. The bike moves forward at 9.25 m/s. What is the wheels centripetal acceleration?
v = 9.25 m/s and r = 677 mm = 0.677 m
Ac = 9.25 * 9.25 / (677 * 0.001) = 126.384 m/s^2
Jolie the hamster is using his hamster wheel which has a diameter of 26.6 cm. a point on the wheel is moving at 0.19 m/s. What is the hamster wheels centripetal acceleration?
v = 0.19 m/s and r = 26.6/2 cm = 13.3 cm = 0.133 m
Ac = 0.19 * 0.19 / (0.266/2) = 0.271 m/s^2
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