Asked by James
If it takes an average force of 5.4 N to push a 4.8-g dart 5.4 cm into a dart gun, assuming the barrel is frictionless, how fast will the dart exit the gun?
Answers
Answered by
Elena
F•s= m•v²/2
v = sqrt(2•F•s/m) =
=sqrt(2•5.4•5.4•10^-2/4.8•10^-3)= 11 m/s
v = sqrt(2•F•s/m) =
=sqrt(2•5.4•5.4•10^-2/4.8•10^-3)= 11 m/s
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