a meter log is a uniform bar of mass m = 77 kg. You want to support it at a rest parallel to the ground. so you place it on a triangle support at 33 cm mark and tie it with a rope on the ground at the 28 cm mark. A) draw your own configuration out. calculate the tension of the rope ____ N, downward, upward, right, left, or none and support force provided by the triangle support _______ N, downward, upward, right, left, or none b) suppose a gumdrop (point mass mb = 14.00 kg) hangs on to the meter log at the 91 cm mark How large will the tension be on the rope? ______ N conceptually explain why it should increase, decrease, or stay the same, compared to part A. C) Now with everything including the gumdrop, the triangle support has been moved away from the rope, to the end of the meter log. Explain why the system itself cannot stay balanced anymore, and the rope goes (T→0). Calculate: rotational inertia of the system below. I = _______ kg·m2 Calculate the sizes (+ only) of both the net torque and angular acceleration of the system ( initial moment when the meter log is still level) τ = ______ N·m
a meter log is a uniform bar of mass m = 77 kg. You want to support it at a rest parallel to the ground. so you place it on a triangle support at 33 cm mark and tie it with a rope on the ground at the 28 cm mark.
A) draw your own configuration out.
calculate the tension of the rope ____ N, downward, upward, right, left, or none
and support force provided by the triangle support _______ N, downward, upward, right, left, or none
b) suppose a gumdrop (point mass mb = 14.00 kg) hangs on to the meter log at the 91 cm mark
How large will the tension be on the rope? ______ N
conceptually explain why it should increase, decrease, or stay the same, compared to part A.
C) Now with everything including the gumdrop, the triangle support has been moved away from the rope, to the end of the meter log.
Explain why the system itself cannot stay balanced anymore, and the rope goes (T→0).
Calculate: rotational inertia of the system below.
I = _______ kg·m2
Calculate the sizes (+ only) of both the net torque and
τ = ______ N·m
? = ______ rad/s2
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