Physics, 28.12.2019 00:31 lesleyy7278

Aball is whirled on the end of a string in a horizontal circle of radius r at constant speed v. which way(s) can increase the centripetal acceleration of the ball by a factor of 9?
a) increasing both the radius and the speed by a factor of 9
b) keeping the speed fixed and decreasing the radius by a factor of 9
c) keeping the radius fixed and increasing the speed by a factor of 9
d) keeping the speed fixed and increasing the radius by a factor of 9
e) decreasing both the radius and the speed by a factor of 9
f) keeping the radius fixed and increasing the speed by a factor of 3

Answers: 3

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Aball is whirled on the end of a string in a horizontal circle of radius r at constant speed v. whic...