A person grips the end of a 3.0m long pole horizontally with hands .5 meters apart. A) if the pole is uniform with a mass of 15.0 kg, find the forces(magnitude and direction) on her left arm(L) and her right arm(R), to hold the pole in place. B) where should she place her hands to minimize both forces.
A person grips the end of a 3.0m long pole horizontally with hands .5 meters apart....
Question 25 of 30 > A tightrope walker is walking between two buildings holding a pole with length L = 16.0 m, and mass mp-20.0 kg. The daredevil grips the pole with each hand a distance d = 0.500 m from the center of the pole. A bird of mass m 575 g lands on the very end of the left-hand side of the pole Assuming the daredevil applies upward forces with the left and right hands in a direction...
7. Joe, a pole-vaulter, is holding a vaulting pole parallel to the ground. The pole is 5 m long. Joe grips the pole with his right hand 10 cm from the top end of the pole and with his left hand 1 m from the top end of the pole. Although the pole is light (its mass is only 2.5 kg), the forces that Joe must exert on the pole to maintain it in this position are large. How large...
A stick is resting on a concrete step with 흑 of its total length L hanging over the edge. A single ladybug lands on the end of the stick hanging over the edge, and the stick begins to tip. A moment later, a second, identical ladybug lands on the other end of the stick, which results in the stick coming momentarily to rest at θ-569" with respect to the horizontal, as shown in the figure. If the mass of each...
Question 8 please-show all work
You are building a mobile. It is connected to the ceiling by a rope. The hanging weights are attached to a massless beam. Use L = 0.25 m, D = 0.5 m, M_1, = 1 kg and M_2 = 1.5 kg. You have a third mass M_3 = 2 kg. Determine the tension in the rope connecting the beam to the ceiling and the location where you attached M_3 if you correctly placed it so...
A clown of mass Mc= 100kg stands still at the far right end of a plank of uniform density, mass Mp= 60kg, and length L= 4m that is supported by a frictionless hinge L/4 from the right side of the plank, and it is in contact with a vertical pole hanging from the ceiling at a point that is L/4 from the left side of the plank. a) Draw an "extended” free body diagram indicating where each of the forces...
Torque question: An essentially weightless shovel is 120 cm long. Someone holds it horizontally, supporting it with his left hand at the shovel's center of gravity and his right hand 80.0 cm to the right of the c.g. The shovel contains a 20 N rock whose cg is 8 cm to the right of the edge of the shovel. How much force does the person exert down on the handle? Answer is supposed to be 8 N but I'm having...
plz help me to solve this whole question ,thank
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N, Ng Weight plank weight block D Equibrium of a Plank under 4 forces (Two Choices of Rotational Axis) As shown in the figure, a uniform plank of length L- 5.6 m rests on two supports that are D 3.3 m apart. The mass of the plank is moark Find the magnitude of the two normal forces N,and N 29.0 kg and its center of mass is at the midpoint....
1. A rod of mass 0.720 kg and radius 6.00 cm rests on two parallel rails (see Figure right) that are d- 12.0 cm apart and L 45.0 cm long. The rod carries a current ofI 46.0 A in the direction shown and rolls along the rails without slipping. A uniform magnetic field of magnitude 0.540 T is directed perpendicular to the rod and the rails. (a) If it starts from rest, what is the speed of the rod as...
Problem 3. (20 points) Consider the following simplified model of a person in static equilibrium in a yoga pose. The diagram below shows the upward normal forces acting on the hands and feet, as well as the downward weight forces on the upper and lower body. There are also horizontal static friction forces on the hands and feet not shown in this diagram. Assume the weight of the lower body has magnitude 250 N and the weight of the upper...
Neytiri is standing on the end
of a long thin uniform board of length L . Half of the board
including the end where Neytiri is standing rests on very slippery
ice with the other half over open water, as shown. Lucky for our
calculations, the board and Neytiri have the same mass M ! !
a) Find the x coordinate, relative to the ice, of the overall CM
of Neytiri and the board. Define x = 0 at her...