5.In which of the situation is work done. (5 Point) pushing a tree lifting a bag 6.In science mental activity is not consider as a work. (5 Point) True False

5.In which of the situation is work done. (5 Point) pushing a tree l

1.	5.In which of the situation is work done. (5 Point) pushing a tree lifting a bag 6.In science mental activity is not consider as a work. (5 Point) True False
Answer» Work DONE is DEFINED by: w = F × DISPLACEMENT where F is force applied.On smooth floor FRICTIONAL force is ZERO,therefore work done is zero.