itc.birzeit.edu
Ti Smooth (ĆĀ¼=0)
Rough (ĆĀ¼=1/2)
A block swings down from rest as shown in
the figure. When the cord is vertical, the
block hits an identical block. Assume the
length of the rope = 20 m, and breaks during the impact, and the two blocks stick together after colliding. Also, both blocks slide over a smooth surface of length = 8 m as shown before they continue sliding over the rough surface of kinetic friction coefficient of 0.5
until they stop.
What is the velocity of the block just before
the impact (v2)?
What is the velocity just after the impact (v3)?
What is the magnitude of deceleration (ax)?
What is the time of travel just after the impact
until the system stopped (Ttot)?
What is the distance traveled just after the
impact until the system stopped (Stot)?
v2
Choose...
v3
Choose...
ax
Choose...
Ttot