a figure shows 2 packages that start sliding down a 20 degree ramp from rest a distance d=6.6m along the ramp from the bottom. Package A has a mass of 5 kg and a coefficient of friction 0.20. Package B has a mass of 10 kg and a coefficient of friction 0.15. How long does it take package A to reach the bottom?

Question

a figure shows 2 packages that start sliding down a 20 degree ramp from rest a distance d=6.6m along the ramp from the bottom.  Package A has a mass of 5 kg and a coefficient of friction 0.20.  Package B has a mass of 10 kg and a coefficient of friction 0.15.  How long does it take package A to reach the bottom?

anonymous · Answer

Fc = (mV^2)/r

Fc is radial force
m is mass
V is velocity
r is radius
diameter is 2r

anonymous · Answer

thank you

anonymous · Answer

where the figure @lglick2787 ??