Acceleration, Newton’s laws and braking

By the end you’ll be able to

• Calculate acceleration from change in velocity and time using $a=\frac{v-u}{t}$, including deceleration as negative acceleration.
• Explain motion in terms of Newton’s first law, including why a resultant force is needed to change an object’s velocity.
• Apply Newton’s second law to relate resultant force, mass and acceleration using $F=ma$, and explain the effect of mass on acceleration and inertia.