Question

ゲスト

半径が一定の速度で減少する円運動の様子を問う力学の問題がわかりません

2 on a frictionless table goes round in a circle on a light string that passes through a

  
 

e 85 Shown. Initially the mass is a distance 7。 from the centre and is turning With
のThe string is pulled with a constant velocity starting at ime だ0, so that
ce to the mass decreases with time.

『 の and then show that for //r2、 の=4 の0.

力学 円運動