A third class lever has a mechanical advantage of <1. What is an example of a third class lever and why use it?

A) pulley; changes direction

B) baseball bat; increases velocity

C) car jack; increases the weight it can lift

D) wheel barrow; makes it easier to move a load

Question

Joanna Lara

Physics

4 January, 20:05

A third class lever has a mechanical advantage of <1. What is an example of a third class lever and why use it?

A) pulley; changes direction

B) baseball bat; increases velocity

C) car jack; increases the weight it can lift

D) wheel barrow; makes it easier to move a load

+1

Answers (1)

Know the Answer?

Conner Solomon · Answer 1

Baseball bat. The handle of the bat is the fulcrum. Exerting a force from the handle supplies the input force just near the middle, while the other end of the baseball bat pushes the ball with the output forces. The input force is greater than the output force but the output load is able to move farther, and this increases the ball's velocity.

A third class lever has a mechanical advantage of <1. What is an example of a third class lever and why use it?A) pulley; changes directionB) baseball bat; increases velocityC) car jack; increases the weight it can liftD) wheel barrow; makes it easier to move a load

A third class lever has a mechanical advantage of <1. What is an example of a third class lever and why use it?

A) pulley; changes direction

B) baseball bat; increases velocity

C) car jack; increases the weight it can lift

D) wheel barrow; makes it easier to move a load