asked 70.8k views
2 votes
I don't understand how a shovel is a 3rd class lever.

isn't the load at the bottom? effort at the top? a fulcrum at the middle??? wouldn't that make it a first class lever? or am i just wrong?

asked
User MikeDub
by
8.0k points

2 Answers

5 votes
A shovel is a third-class lever. The effort is always between the load and the fulcrum.
When you scoop up dirt with a shovel,
you put one hand on the top of the
shovel’s handle and the other on the middle of the shovel. The dirt, which is the load, sits on the shovel’s scoop.
The hand on the middle of the shovel is the one that does the work. This hand lifts the shovel and the load up from the ground.
The advantage of a third-class lever is that the load moves farther than the effort. You only need to lift the middle of the shovel a bit to raise the scoop with its load of dirt up quite a lot.
answered
User TWright
by
7.6k points
2 votes

Answer:

I think you are correct but you should still check gogle to be 100 percent sure

Step-by-step explanation:

answered
User Limbo Peng
by
7.7k points
Welcome to Qamnty — a place to ask, share, and grow together. Join our community and get real answers from real people.