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A ball tied to a string maintains a centripetal acceleration of 20 m/s2 and a radius of 3 meters.  What is the velocity of the ball?
in Grade 12 Physical Sciences by Diamond (50,571 points) | 51 views

4 Answers

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a = v^2/r

v=square root a * r

=square root 20*3

= 7.746 m/s
by Wooden (2,549 points)
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a=v^2/r

ar=v^2

20x3=v^2

60= v^2

v is equal to square root of 60

v=7.746
by Wooden (233 points)
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ac = 20 m/s²        r = 3 m         V = ?

ac = V² / r

V² = (ac)(r)

    = (20)(3)

V = √60

    = 7.75 m/s
by Wooden (786 points)
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a=v^2/r

v=Sq.rt (a.r)

=Sq.rt (20x3)

=7.75m/s
by Wooden (1,121 points)

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