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Physics 102 Online
tanyag10:

John coasts on his skateboard at a speed of 5 m/s. He uses his foot to slow himself down to 3 m/s. If he has a mass of 99 kg, what impulse does he apply?

Vocaloid:

impulse can be defined as the change in momentum remember that p = mv where p is momentum, m is mass, and v is velocity simply calculate the change in velocity (vf - vi) and multiply by the mass

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