answer question 84 only me Bool 81 A person stands on a scale on level ground an
ID: 1660227 • Letter: A
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answer question 84 only
me Bool 81 A person stands on a scale on level ground and the scale reads 15o Ib lb. a. What would the same scale read if the person stood on it while it was on a 30 degree incline? b. What would it read if it was on a 40 degree incline? 82 Wagon train: Two children in separate wagons are being pulled with a force of 200 N by their older brother as pictured. They accelerate at 1.5 sec If the masses of the younger brothers are 15 kg and 20 kg, how strong does the force between the younger brothers need to be for them to stay attached? with two extra weights in it (m-1.5 kg) sits on a ramp that is 42 degrees steep. How much mass should we hang over a pulley attached to other end of a rope to make everything sit still? 84. The boy and the wagon revisited In problem #67, a boy pulled a 43.5 kg wagon with a force of 200 N at 30 degrees above horizontal, while he was pulling, how strong was the normal force on the wagon wheels from the ground?Explanation / Answer
84)
Summation of vertical forces on the wagon = 0
N + 200sin(30) -mg = 0
N = mg - 200sin(30)
= (43.5)(9.8) - 200sin(30)
= 326.3 N
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