unit 5 forces

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  • Forces
    • Forces and Braking
    • Forces of elasticity
    • Resultant forces
  • The faster a vehicle is going the more energy it has in its kinetic stores so the more work needs to be done to stop it.
  • Factors that cause a driver to react slower will increase the reaction time and therefore increase the overall stopping distance.
  • When the break peddle is pushed this causes break pads to press on wheels this contact causes friction, which causes work to be done. The work done between breaks and wheels transfers energy from the kinetic energy stores of the wheels to the thermal energy stores of the breaks. The breaks increase in temperature.

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