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How do you calculate change in momentum?

Momentum help please ASAP?

  • I have this really hard homework to do, i've answered most of the questions, but there are some i don't understand. Please answer the questions below ASAP? I will give the best answer a rating. How do you calculate the change in momentum? Write down an equation which connects change in momentum, force and time. How do you calculate the force applied to something? A magazine article states that: "wearing a seat belt can save your life in a car crash." Use your understanding of momentum to explain how this is correct.

  • Answer:

    Your questions are a little unspecific but here goes 1) momentum is rho = mass*velocity => delta*rho = m*(delta*v) (change in velocity) 2) Newtons second law Force = dp/dt 3) Measure change in momentum/velocity and duration of applied force => calculate deltap/deltaT 4) Force applied by belt slows you gradually unlike the windshield/dash which slows you quickly!!!!

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