A 6kg bucket of water is being pulled straight up by a string at a constant speed.
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Question:
A 6kg bucket of water is being pulled straight up by a string at a constant speed.
I determined that the tension on the string was
F = ma
F = (6kg * 9.8 m/s2) * 0a
F = 58.8 N
Now its asking
At a certain point the speed of the bucket begins to change. The bucket now has an upward constant acceleration of magnitude 3 m/s2. What is the tension in the rope now?
The correct answer was "about 78N"
I dont understand how this 78 N was calculated, my mass (6 * 9.8) stayed the same and a=3, so i would have figured it would be at least closer to (6 * 9.8) 3 = 176.4 N.
What am I missing?
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