13. Acceleration-calculation

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๐Ÿ๏ธ Calculating Acceleration of a Motorcycle โ€“ A Step-by-Step GCSE Guide

In this example, we calculate the acceleration of a motorcycle that increases its speed
from 15 m/s to 35 m/s over a time interval of 4 s.
Since acceleration is the rate of change of speed, this is an ideal opportunity to learn and apply one of the core GCSE Physics equations.

๐Ÿ“‹ Step 1 โ€” List the Known Quantities

Following the Physics Ninja method List โ†’ Equation โ†’ Solve โ†’ State, we begin by identifying the data:

  • u โ€” initial velocity = 15 m/s
  • v โ€” final velocity = 35 m/s
  • a โ€” acceleration = ? (units: m/sยฒ)
  • t โ€” time taken = 4 s

๐Ÿ“ Step 2 โ€” Quote the Relevant Equation

Depending on your exam board, this formula may be provided on your GCSE Physics equation sheet... but it's worth learning anyway:

acceleration = change in velocity / time taken

a = (v โˆ’ u) / t

๐Ÿงฎ Step 3 โ€” Substitute and Solve

Insert the values into the formula:

a = (35 โˆ’ 15) / 4

Simplifying this gives:

a = 20 / 4 = 5 m/sยฒ

๐Ÿ Step 4 โ€” State the Final Answer

The motorcycle accelerates at 5 m/sยฒ. Always remember to include the correct units
when stating your final answer โ€” acceleration must be expressed in m/sยฒ.

This structured method โ€” List, Equation, Solve, State โ€” helps ensure accuracy and clear, logical presentation in all GCSE Physics calculations.

Course overview

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