5. One 3.5 kg paint bucket is hanging by a massless cord from another 3.5 kg paint bucket, also hanging by a massless cord.(adsbygoogle = window.adsbygoogle || []).push({});

a) If the buckets are at rest what is the tension in each cord?

b) If the two buckets are pulled upward with an acceleration of 1.6 m/s2by the upper cord, calculate the tension in each cord.

a) Tension of Top bucket

F=ma= (3.5 kg)(9.80 N/kg) = 34.3 N

Tension of Lower bucket

F=ma= (3.5 kg)(9.80 N/kg) = 34.3 N

Total Force=68.6 N

b)

Lower Bucket

T - 34.3 N = (7.0 kg)(+1.6 m/s/s)= 45.5 N

Upper Bucket

T - 34.3 N - 45.5 N = (3.5 kg)(+1.6 m/s/s) = 85.4 N

Double checking? Look good?

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# Homework Help: If the buckets are at rest what is the tension in each cord?

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