How far is the center of mass from the handle end of the club-ax? Express your answer in cm.
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Fred Flintstone’s club–ax is made up of two parts: an uniform 4.0 kg stick and a symmetrical 7 kg stone attached to the end of the stick. The dimensions of the club-ax are shown in the figure. How far is the center of mass from the handle end of the club-ax? Express your answer in cm.
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- A uniform bar has a length of 1m, and a mass of 5kg. If a 10 kg mass is attached to one end of the bar (at x=0), and a 30 kg mass is attached to the other end (at x=1m). The center of mass is closest to which point?To get up on the roof, a person (mass 62.0 kg) places a 6.80 m aluminum ladder (mass 11.0 kg) against the house on a concrete pad with the base of the ladder 2.00 m from the house. The top of the ladder rests against a plastic rain gutter, which we can assume to be frictionless. The center of mass of the ladder is 2.00 m from the base, as measured along the ladder. The person is standing on the ladder 3.00 m from the base, as measured along the ladder. Find the normal reaction and friction forces (in N) on the ladder at its base. (Enter the magnitudes.) normal reaction force friction forceThe member shown below is fixed at O and its dimensions are h1 = 1.10 m, h2= 0.20 m, and w = 0.50 m A force F of magnitude F=40 N is applied at point A. Determine the magnitude of the moment of the force about point O.
- Three children are playing on a seesaw. The largest child has a mass of 50 kg and sits on the right side of the seesaw 0.9 m from the fulcrum. The middle child has a mass of 40 kg and sits on the left side of the seesaw 2.5 m from the fulcrum. Where does the smallest child, who has a mass of 25 kg, need to sit in order to balance the seesaw?A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 5.37 g coins stacked over the 30.0 cm mark, the stick is found to balance at the 46.3 cm mark. What is the mass of the meter stick?A horse weights 5000 Newtons. The distance between the front and rear hooves is L1= 1.8 meters and the distance from the rear hooves to the center of mass L2=1.1 meters for the horse are shown in the attachment. What fraction of the horses weight is borne by the front hooves?
- 8.1Two kids are playing on a seesaw on the school playground. The first kid (of mass 50 kg) sits 2 meters from the fulcrum. The other child (who has a mass of 70 kg) sits on the other side of the seesaw. How far away from the fulcrum does the second child need to sit in order to balance the seesaw? Assume that the seesaw itself is weightless. O 0.79 m O 1.43 m O 1.03 m O 2.24 mThree children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 3.4 m long (Figure 1). Two playmates are already on either end. Boy A has a mass of 45 kg, and boy B a mass of 35 kg. ▼ Part A Where should girl C, whose mass is 25 kg, place herself so as to balance the seesaw? Express your answer to two significant figures and include the appropriate units. for Part A for Part Addo for Part redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A x= Value Units
- A 200 gram meter stick has a center of mass at the 50 cm mark. You place a pivot at the 50 cm mark, hang 100 grams at the 10 cm mark and hang 200 grams at the 20 cm mark. How much mass must you hang at the 80 cm mark to balance the system?A uniform, 20-kg, 8.0-m-long, wooden plank that is parallel to level ground is supported by two pivots: one pivot is at the extreme left end of the plank, and the other pivot is 3.0 m inward from the extreme right end of the plank. A 80-kg construction worker, who is initally standing on the extreme left end of the plank, begins to walk to the right. How far from the right end of the plank will the worker be located when the plank begins to tip? 4.0 m 4.0 m 5.0 m a. 4.50 m O b.5.00 m O c. 4.25 m d. 5.25 m O e. 4.75 mA uniform, 20-kg, 8.0-m-long, wooden plank that is parallel to level ground is supported by two pivots: one pivot is at the extreme left end of the plank, and the other pivot is 3.0 m inward from the extreme right end of the plank. A 80-kg construction worker, who is initally standing on the extreme left end of the plank, begins to walk to the right. How far from the right end of the plank will the worker be located when the plank begins to tip?