10.6 Pulleys (STATISTICS AND MECHANICS 1 - Chapter 10: Forces and motion)

#hindsmaths Particles connected by light inextensible string over a pulley

0:00 Intro
11:37 Example 13
23:02 Example 14
38:25 End/Recap

[izzywarhurst]

this topic has been killing me. thank you so much for this

[miraclesicky]

Hi there, 28:24 part b

Why is S (displacement) positive 0.5?

B is going downwards so displacement should be negative, acceleration positive because gravity acts downwards?

I am really confused when to put displacement and acceleration as +ve or -ve. Please explain sir, ty ❤

[muhammadabubakar]

In example 14 why we don't talk about of the particle A lies on a rough horizontal table 4.5m from a small pulley...?

[Bnz]

If a string is inextensible, the tension is the same throughout the string?

[zaneegiebade]

With the mg does the g represent gravity(9.8)