In the Figure, a block rri] sits on a table. There is static friction between bl
ID: 2179331 • Letter: I
Question
In the Figure, a block rri] 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, "Tl". 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. Which of the following statements arc true? (If A and E arc true, and the others arc not, enter TFFFT) The tension T2 must equal m2 g The force of static friction on ml is less than T1 T3 is equal in magnitude to Tl If the table was completely frictionless, the system as shown could not be in equilibrium The net force on the knot is zero.Explanation / Answer
Since it is in equilibrium
m2g = T2
A is false
is table is friction less then T1 is zero ..it wont be in equilibrium
B is false
It is in equilibrium so net force is zero
C is false
D - True
E - false
And FFFTF
T2 = m2*g
T1 = .21*865 = 181.65
using law of sines
T1/sin(90+theta) = T2 / sin(180-theta) = T3/sin(90)
T2 = 109.58
maximum weigh of block m2 = 109.58 N or 11.17 kg