Q1: The magnitude of
the normal force exerted on the block by the force is given by:
a) mg 
d) mg  T sin q 
b) mg  T cos q 
e) T sin q 
c) mg + T cos q 
f) None of the above 
Q2: The
magnitude of the frictional force exerted on the block by the force
is given by:
a) T cos q 
d) m(mg  T
cos q) 
b) T sin q 
e) Zero

c) mg 
f) None of the above 
Q3: During
a horizontal displacement: Dx of the
block:
a) The work done by the force T is
given by TDx.
b) The work done by the force T is given by (T sin
q) Dx.
c) Some of the work done by the force T is stored
as potential energy in the system while the rest is converted into
thermal internal energy.
d) The work done by the force T is equal to the kenetic energy
change of the block.
e) The change in potential energy of the blockearth system is mgDx.
f) None of the above.
