الحركة الدائرية المنتظمة

قوانين الحركة الدائرية المنتظمة

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الاسم
A spinning top has a radius of 2 cm. If the top takes 0.06 s to complete one rotation, what is the centripetal acceleration at the edge of the top?
The centripetal acceleration on a 1000-kg car in a turn is 1 X 10^5 m/s2. The radius of the turn is 10 m. What is the cars speed?
A skater holds out her arms level to the ground as she spins. In one hand she holds a tennis ball. Each of her arms is 1 m long. If the tennis ball travels at 5 m/s, what is its centripetal acceleration?
The Moon takes 27.3 days to orbit the Earth at an average radial distance of 385000 km from the center of the Earth. What is the acceleration of the Moon?