Find the odd one out based on whether scientific work is done or not:
Find the odd one out based on whether scientific work is done or not:
A trolley being pushed along a supermarket aisle
A coconut falling from a tall palm tree
A student sitting still at a desk reading a textbook silently
A marble rolling across a smooth tiled floor
Solution
In options a, b, and d, force causes displacement, so work is done. Sitting still reading involves no displacement of the body, so no scientific work is done.