Barry used a ramp to transport a load to a truck. The ramp made work easier by :
1) reducing the size of the input force
2) reducing the input force to zero
3)changing the distance over, which the input force was exerted
4) reducing the output force to zero
I think #3
2 answers
That sounds like the most reasonable one too me. I think you are right.
Yea I think your right to good luck on the test!
1 answer