Salvesambuid
Answered


2. Push down on it with the other hand and let your thumb slip off
the end.
Guide Question:
1. What do you see and hear? Explain
2. What did you feel when you push down and slip of the end of the ruler?​

Sagot :

Agamaoaaronid

Answer:

1.You can find the centre of gravity of the ruler by sliding your fingers from the ends towards the middle.

2.As you slide your fingers, the force of friction pushes back. The more weight on your finger, the greater the force of friction.