ROTATIONAL MOTION

How does the position of G affect the moment arms in Example 6.8?

• It has no effect
• It shortens all arms
• It determines the distances to forces like R₁, R₂, and W₁
• It increases weight

What is the effect of g being constant on the relationship between CG and CM?

• They separate
• No effect
• It makes them coincide
• They disappear

Why can't the CG be found by simply dividing the shape into halves?

• It always works
• Because the shape is irregular
• Because mass distribution may not be symmetric
• It is too slow

What is the significance of the intersection point in Fig. 6.25?

• It shows the heaviest spot
• It is random
• It marks the edge
• It uniquely identifies the centre of gravity

How does the concept of CG help in designing vehicles?

• To increase speed
• To reduce fuel
• To ensure stability and prevent tipping during motion
• To improve color