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An impulse of 100 N.s is applied to a 20.0 kg mass traveling at a speed of 50 m/s. Determine the speed of the mass after the impulse was applied. [Show all work including the equation and the substitution with units.]

 Jan 6, 2020
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Impulse = change in momentum

100 N = m * change in v

100N = 20 kg * change in v

5 m/s = change in velocity  

 

if the impulse is applied in line with the direction of travel, the object will now be travelling 55 m/s

if the impulse is applied OPPOSITE to the direction of travel , the object is now traveling 45 m/s

 Jan 6, 2020

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