Regents Physics

1
Regents Physics

• Energy and Work involved in Crashes
• Terrorist on a Motorcycle

2
Terrorist on a Motorcycle

• Assume the following
• Motorcycle was moving at 20 m/s
• Cycle (200 kg) Rider (85 kg)
• Find
• The kinetic energy of the rider cycle just
  before the crash
• Amount of work done to bring cycle to rest
• Assume the bike came to a stop over a distance of
  0.50 m, find the force involved in the collision

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