Question

Construction materials are to be moved using the trolleys in the options. Assume friction is negligible. Which trolley requires the least amount of effort?

• A.

  

• B.

  

• C.

  

• D.

  

Answer 1

The Correct Option is D

To determine which trolley requires the least amount of effort to move construction materials, we must consider the principle of mechanical advantage and the number of wheels involved.

• Trolley 1, 2, and 3 have fewer wheels or have configurations that do not effectively distribute the load, thus requiring more effort to push or pull.
• Trolley 4, however, has a configuration that allows better distribution of the load due to its design, making it easier to move.

Based on this analysis and assuming negligible friction, Trolley 4 requires the least effort to transport materials efficiently due to its more favorable wheel configuration.