Camphor is a chemical that sub-limes and interacts with water reducing the surface tension where it is put. Explain why the toy boat illustrated above would move forward with the camphor placed at the back of it but would be stationary before the placement of the camphor.
Explanation
At the initial state, F\(_1\) = F\(_1\) . Therefore their resultant equal zero. At the placement of camphor F\(_1\) becomes less than F\(_2\) . Their resultant (F\(_2\) - F\(_1\)) makes the toy boat to move forward.
