A single constant force f 3 i 4j n acts on a 385, Ask an Expert

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A single constant force F = (3 i + 4j) N acts on a 3.85 kgparticle.

(a) Calculate the work done by this force if the particlemoves from the origin to the point having the vector positionr = ( i - 4 j)m.

(b) What is the speed of the particle at r if its speed atthe origin is 4 m/s?

m/s

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