A 10.0-kg rod has a varying linear density that is symmetric about the midpoint of the rod. The moment of inertia about an axis perpendicular to the rod that passes through the rod 30.0 cm from its midpoint is 5.00 kg?m2
What is the moment of inertia about an axis perpendicular to the rod that passes through the rod 20.0 cm from its midpoint? A)
7.50 kg?m2
B)
4.50 kg?m2
C)
5.10 kg?m2
D)
4.90 kg?m2
E)
Answer depends on whether the new axis is on the same side of the midpoint as the 30.0 cm distant axis or if its on the opposite side of the midpoint.
B
You might also like to view...
The electric field 1.5 cm from a very small charged object points toward the object with a magnitude of 180,000 N/C. What is the charge on the object? (k = 1/4??0 = 8.99 × 109 N ? m2/C2)
A) +4.5 nC B) -5.0 nC C) +5.0 nC D) -4.5 nC
To be dimensionally consistent, distance [L], acceleration 
and time [T] must be related as follows.
A. 
B. 
C. 
D. 
Note the expression: y = x2 . Which statement is most consistent with this expression?
a. If y doubles, then x quadruples. b. y is greater than x. c. If x doubles, then y doubles. d. If x doubles, then y quadruples.
Spherical Mirrors: An object is 50 cm from a concave mirror with radius of curvature of magnitude 60 cm. What is the lateral magnification produced by the mirror?
A. +0.40 B. +0.70 C. +1.5 D. -0.70 E. -1.5