This question is very straight forward. As both P and Q are copper, the density will be the same. But many are unsure of KE. Let look at...

Answer: Option C

Using the concepts that POM, we know 1) Ma = Mc 2) net force on the stick is 0N. Most of us will most likely to take pivot about P as...

When two components are connected in series, where one is a fixed resistor and the resistance of the other can vary (e.g. thermistor,...

Below are some examples of questions that involve finding the resultant force due to two or three forces. Below are the questions in the...

For these type of questions, it is important to identify which tyre/wheel is connected/powered by the engine or the person. On each tyre...