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Impulse Contents: New concept Example Whiteboards

This article explains the concept of impulse in physics, providing examples and calculations. Topics include the change in momentum, force, and time. Learn how to calculate impulse and its practical applications.

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Impulse Contents: New concept Example Whiteboards

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  1. Impulse • Contents: • New concept • Example • Whiteboards

  2. Change in momentum = Impulse • Impulse = p = F t where • F = Force • t = time that the force is exerted

  3. Example: What impulse is imparted by exerting a 12 N force for 3.6 s? • Impulse= F t = (12 N)(3.6 s) • Impulse = 43.2 Ns

  4. Whiteboards Impulse 1 | 2 | 3

  5. What is the impulse of a 6.12 N force acting for 2.3 seconds? 14 Ns Impulse= F t Impulse = (6.12 N )(2.3 s)=14.1 Ns

  6. For what time must you exert a force of 12 N to impart 20.0 Ns of impulse? 1.7 s Impulse= F t 20 Ns = (12 N) t t = (20 Ns)/ (12 N) = 1.7 s

  7. A rocket engine is rated at 14 Ns of impulse, and burns for 1.7 seconds. What is the thrust of the engine? 8.2 N Impulse= F t 14 Ns = F(1.7 s) F = (14 Ns)/ (1.7 s) = 8.24 N

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