Question

A band passes around all the wheels so that they can all be turned by the driving wheel. When the driving wheel turns in the direction shown, which way will the wheel B turn?

• A. Clockwise
• B. Cannot move
• C. Anti-clockwise
• D. Either way

Answer 1

The Correct Option is B

To determine the direction in which wheel B will turn, let us analyze the system of wheels connected by a band. In this setup:

1. The driving wheel moves in a specific direction.
2. The band wraps around all wheels, facilitating the transfer of motion.

However, consider the following:

• The band configuration suggests that a typical interaction between wheels and band could involve static friction, allowing motion transfer.
• A crucial point is whether the band can slip or if it's fixed rigidly enough to transmit rotational motion effectively.
• The question doesn't imply slippage or suggest otherwise, but to address all possibilities, note:
• If each wheel is equally affected, and no external force other than the driving wheel's torque influences the system, the band may simply cause no motion on wheel B due to the equal distribution of tension and lack of additional driving forces causing rotation exclusively to it.

Therefore, analyzing given options in light of this:

• Clockwise or Anti-clockwise:
• No specific directional imbalance or force advantage exists for wheel B to turn.
• Either way:
• Similar reasoning applies, there is no deterministic factor allowing a specific directional choice.
• Cannot move:
• Consistently aligns with observations; the system as a whole doesn't discernibly favor rotation towards any direction for wheel B in this context.

Thus, based on the aforementioned points, the correct answer is: Cannot move.