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OpenStudy (lexy148):
A 0.5 kg ball moves in a circle that is 0.4 m in radius at a speed of 4.0 m/s. Calculate its centripetal acceleration. ac=40 m/s2 now how do you find centripital force?
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OpenStudy (surry99):
F= mv^2/r
OpenStudy (lexy148):
thx the answer is 20N
OpenStudy (surry99):
yes...
OpenStudy (lexy148):
nd is the ac part correct
OpenStudy (surry99):
yes...ac=v^2/y = (4 m/s)^2/.4m = 40 m/s^2
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OpenStudy (lexy148):
ok thx
OpenStudy (surry99):
oops minor typo...ac=v^2/r
OpenStudy (lexy148):
lol i know what you meant
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