(6%) Problem 3: A boy is pulling his sister in a wagon, as shown in the figure.
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(6%) Problem 3: A boy is pulling his sister in a wagon, as shown in the figure. He exerts a force of F= 56.5 N at an angle of 30°. 30° Otheexpertta.com How much work does the boy do pulling his sister, in joules, if he pulls her 29.5 m? Grade Summary 096 100% Potential sin0 cotanasin acos0 atan0 acotansinh0 cosh0 tanhcotanh0 Submissions Attempts remaining: 7 (090 per attempt) detailed view cos tan() ?|( Degrees Radians Submit Hint I give up! Hints: 2% deduction per hint. Hints remaining: 2 Feedback: 2%, deduction per feedback.Explanation / Answer
Work done = F.d (dot product)
= F d cos(theta)
F = 56.5 N
d = 29.5 m
theta = 30 deg
So W = 1443 J ....Ans
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