# What is an example of an impulse practice problem?

In other words, an impulse is the sum of all the infinite instances of instantaneous force applied over a brief period of time, and it is what causes an object to change velocity as a result of an impact.

I'll leave you with this one as well:

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Sure, here's an example: A 0.2 kg object experiences a force of 5 N for 2 seconds. Calculate the impulse exerted on the object.

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- A ball with a mass of #4 kg# moving at #6 m/s# hits a still ball with a mass of #8 kg#. If the first ball stops moving, how fast is the second ball moving?
- An object with a mass of #2 kg# is traveling at #14 m/s#. If the object is accelerated by a force of #f(x) = x+xe^x # over #x in [0, 9]#, where x is in meters, what is the impulse at #x = 8#?
- What are some examples of an elastic collision?
- A ball with a mass of # 3 kg# is rolling at #16 m/s# and elastically collides with a resting ball with a mass of # 1 kg#. What are the post-collision velocities of the balls?
- Which has more momentum, a #6kg# object moving at #5m/s# or a #9kg# object moving at #3m/s#?

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