a text book of mass 2.10 kg rests on a frictionless horizontal surface. A cord a
ID: 1584751 • Letter: A
Question
a text book of mass 2.10 kg rests on a frictionless horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.200 m, to a hanging book with mass 3.00 kg. The system is released from rest, and the books are observed to move a distance 1.15 m over a time interval of 0.830 s. What is the tension in the part of the cord attached to the text book? a text book of mass 2.10 kg rests on a frictionless horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.200 m, to a hanging book with mass 3.00 kg. The system is released from rest, and the books are observed to move a distance 1.15 m over a time interval of 0.830 s. What is the tension in the part of the cord attached to the text book? a text book of mass 2.10 kg rests on a frictionless horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.200 m, to a hanging book with mass 3.00 kg. The system is released from rest, and the books are observed to move a distance 1.15 m over a time interval of 0.830 s. What is the tension in the part of the cord attached to the text book?Explanation / Answer
First we can find the acceleration
Apply d = vot + 0.5at2
1.15 = 0 + (0.5)(a)(0.83)2
a = 3.34 m/s2
The apply to sum of forces for the horizontal book
T1 = ma
T1 = (2.10)(3.34) = 7.01 N
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