In the Figure, a block m 1 sits on a table. There is static friction between blo
ID: 1383754 • Letter: I
Question
In the Figure, a block m1 sits on a table. There is static friction between block and table. Block m2 hangs from a knot, as shown. Call the tension in the rope connecting the knot to m1, "T1". Call the tension in the rope connecting the knot to m2, "T2". Call the tension in the third rope (the one tipped up by an angle theta, connecting the knot to the wall), "T3". The system is in equilibrium.
note that : -T3 is larger in magnitude than T1
-The force of static friction on m1 equals T1
block m1 weighs 853 N. The coefficient of static friction between the block and the table is 0.26 and the angle theta is 25.0o. Find the maximum weight of block m2 for which block m1 will remain at rest.
Explanation / Answer
A) The net force on the knot is downwards.
B) If the table was completely frictionless, the system as shown could still be in equilibrum.
C) The force of static friction on m1 is greater than T1
D) T3 is equal in magnitude to T1
E) The tension T2 must equal m2g
A is true.
B is untrue. No friction and the system is not in equilibrium.
C is untrue. It equals T1.
D is untrue. T3 will exceed T1.
E is true.
TFFFT.