A thin constant wire is twisted into a semicircle of radius R. Find the centre of mass from the semicircle diamete O A. 6R/ TT O B. 3R/ TT Oc. 9R/ TT O D. 2R/ T O E. None of these
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- You have two objects connected by a light bar, one object is 40 kg, the other is 60 kg.The center of mass is... a) at the midpoint between the two objects b) closer to the 40 kg object c) closer to the 60 kg objectNeeds Complete typed solution with 100 % accuracy.To determine the location of the center of mass of a car, the car is driven over a scale. When the front wheels are over the scale, the weight recorded by the scale is 5800 N, and when the rear wheels are over the scale, the scale reads 6500 N. The distance between the front and rear wheels is 3.20 m. How far behind the front wheels is the center of mass located? O 1.69 m O 1.72 m 0.845 m 1.50 m Ⓒ1.59 m
- Need help RIGHT AWAYd uy swishing its tail back and forth. idow 6. Two children float motionlessly in a space station. The 20-kg girl pushes on the 40-kg boy and he sails away at 1.0 m/s. The girl (a) remains motionless; (b) moves in the same direction at 1.0 m/s; (c) moves in the opposite direc- tion at 1.0 m/s; (d) moves in the opposite direction at 2.0 m/s; (e) none of these. FIGURE 7-29 Question 17. artle1. Calculate the location of center of mass of the system of 4 point masses as shown in the Figure. 4 kg 2 kg 5 m 4 m 4 m/ 8 kg 5m 6 kg
- 8. a block with an unknown mass slides at 2.82 m/s on a horizontal frictionless surface and it collided with an identical block that was at rest. they stick together. they then slide onto w rough board that has a coefficient of friction of 0.331. calculate the distance they slide before stopping1. Examine the diagram below and then sketch the extended free-body diagram for the plank. Assume that the plank has a uniform mass so that its center of mass is located at its center. SnDetermine location of the center of mass of steel sheet that is shaped as shown below. Give your answer in the form (xCM; YCM), where xCM and ycm are in cm, to one decimal place. у (ст) 3L 2L IL x (cm) IL 2L 3L
- Follow-up Questions 2. Three uniform thin rods, each of length L, form an inverted U. The ogo vertical rods each have a mass of M: the horizontal rod has a mass of 3M. What are (a) the x coordinate and (b) the y coordinate of the system's center of mass? L. Part 484. Object A, whose center is at (2.0m, 2.0m) has a mass of 40 kg. Object B has its center at (10m, 4.0m) and has a mass of 30 kg. What is the x component of their center of mass in m? a) 2.9 6. b) 5.4 B c) 6.1 4. d) 6.3 A e) 6.7 2 8. 10 12 x (m) 6. 2) (w)m)Two skaters stand facing each other. One skater's mass is 50 kg and the other's mass is 72 kg. If the skaters push away from each other without spinning...? Explain your answer. (a) the 72 kg skater travels at a lower momentum. (b) the 50 kg skater travels at a lower momentum. (c) their total momentum decreases. (d) their momentums are equal but opposite.