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A man tries to pull out a nail on the wall with a string attached to the head of the nail and pull at an angle of 30 degree to the wall if the tension in the string is 15N. Calculate the force effective pulling out the nail.
13 years ago

Answers

Henry
A = 90 - 30 = 60 deg. above positive
x-axis.

Fh = hor. = 15cos60 = 7.5N.
13 years ago

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