Quiz

Will DW's Home page

1.for each question first find the force and then the [[#|work]].

a)A 3.0-kg book is being lifted from the floor to a desk 0.60m from the floor.

b)a crane lifts a 5500-kg slab to a height of 35.0m.





c) the breaks of a truck [[#|apply]] a force of 20 000N to bring a truck to stop in a distance of 100.0m.






2.for each question answer if it is potential to kinetic on kinetic to potential.


a) a plane lands then stops on a runway.



b) an [[#|apple]] falls from a tree.




c) a person runs then stops to take a rest.