A-level Physics · Circular motion
Centripetal force
Find the centripetal force from the speed, or from the period using ω = 2π/T.
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Question 1
A ball of mass 0.66 kg is whirled in a horizontal circle of radius 2 m at a constant speed of 7.1 m s⁻¹. Calculate the centripetal force acting on the ball. Give your answer to 3 significant figures.
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