quickclick330
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In outer space a rock of mass 3 kg is attached to a long spring and swung at constant speed in a circle of radius 7.5 m. The spring exerts a force of constant magnitude 640 N. What is the speed of the rock?
I thought i was doing this right...but I guess not
Fspring = Fcent.
Fcent = m* v^2/r so... v = sqrt(F*r/m)
v = sqrt(640*7.5/3 ) = 41 m/s
If anyone could tell me what I'm doing wrong, that would be a lot of help! thanks! :-)
I thought i was doing this right...but I guess not
Fspring = Fcent.
Fcent = m* v^2/r so... v = sqrt(F*r/m)
v = sqrt(640*7.5/3 ) = 41 m/s
If anyone could tell me what I'm doing wrong, that would be a lot of help! thanks! :-)