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horrorfan [7]
4 years ago
14

A 4.0 kg bucket of water is raised from a well

Physics
1 answer:
IrinaVladis [17]4 years ago
6 0

Explanation:

Draw a free body diagram of the bucket.  There are two forces:

Tension force T pulling up.

Weight force mg pulling down.

Sum of forces in the y direction:

∑F = ma

T − mg = ma

T = mg + ma

T = m (g + a)

Given m = 4.0 kg, g = 9.81 m/s², and a = 2.8 m/s²:

T = (4.0 kg) (9.81 m/s² + 2.8 m/s²)

T = 50.44 N

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