ROTATIONAL MOTION

How does the center of mass depend on the masses of two particles?

• Directly proportional to each mass
• Inversely proportional to each mass
• Independent of masses
• Inversely proportional to the sum, but weighted by individual masses

Which principle is used to find the center of mass in the HCl molecule?

• Arithmetic mean of positions
• Geometric mean
• Mass-weighted average of positions
• Harmonic mean

What is the force on each back wheel of the car?

• 3675 N
• 5145 N
• 7350 N
• 10290 N

What is the force on each front wheel of the car if total weight is 1800 kg?

• 1800 N
• 3675 N
• 5000 N
• 7350 N

A 2 m long bar is suspended by strings at 36.9° and 53.1°. Where is the center of gravity from the left end?

• 1.2 m
• 0.5 m
• 0.8 m
• 1.5 m