Subject :NSO Class : Class 3
Select the activity which will produce a different effect than the other three.
AFitting wheels on the bottom of a box to be dragged.
BPutting oil on the hinges of a garage gate.
CTiling a cemented floor.
DReplacing the laminated plastic board with cardboard for toy car racing.
It is do with friction. Option D increases the friction while all other decrease the friction
Ans 1:
Class : Class 6