Friction acts in a direction___the applied force.
1 answer:
You might be interested in
Answer:
The torque about his shoulder is 34.3Nm.
The solution approach assumes that the weight of the boy's arm acts at the center of the boy's arm length 35cm from the shoulder.
Explanation:
The solution to the problem can be found in the attachment below.
The position of the mass is given by (in cm):
The velocity is the derivative of the position:
Substituting t=0.40 s, we can find the velocity at this time:
The velocity is the derivative of the position:
Substituting t=0.40 s, we can find the velocity at this time: