A-level Mathematics/OCR/M1/Formulae

By the end of this module you will be expected to have learnt the following formulae:

• Weight ${\displaystyle =mass\times g}$
• Limiting Friction: ${\displaystyle F=\mu R\,}$
• ${\displaystyle F=ma\,}$

• ${\displaystyle v=u+at\,}$
• ${\displaystyle s=ut+{\frac {1}{2}}at^{2}}$
• ${\displaystyle s={\frac {1}{2}}(u+v)t}$
• ${\displaystyle v^{2}=u^{2}+2as\,}$
• ${\displaystyle s=vt-{\frac {1}{2}}at^{2}}$
• ${\displaystyle v={\frac {ds}{dt}}}$ , ${\displaystyle a={\frac {dv}{dt}}}$

• Momentum of a Particle: ${\displaystyle p=mv\,}$

Momentum is conserved. Therefore if there is a collision between 2 objects, the momentum before = momentum afterwards.

Impulse is the change in momentum.