two masses..friction force ..acceleration?
A block of mass m = 2.10 kg rests on the left edge of a block of larger mass M = 8.15 kg. The coefficient of kinetic friction between the two blocks is 0.330, and the surface on which the 8.15 kg block rests is frictionless. A constant horizontal force of magnitude F = 17.80 N is applied to the 2.10 kg block, setting it in motion
a). If the distance L that the leading edge of the smaller block travels on the larger block is 3.20 m, how long will it take before this block reaches the right side of the 8.15 kg block
b).how far does the 8.15 kg block move in the process?
a.)so I tried Fnet=17.80-umg a=Fnet/m and then t=sqrt(2L/a)
but it's wrong.
- RebeccaLv 5hace 1 décadaRespuesta preferida