3. Two blocks with unequal masses, M and m (M> m), are connected by a light, very long string passing over a pulley of negligible mass, as shown in the figure, and then released. Friction is negligible. 4 a. If one of your classmates calculated that, once released, the acceleration of the blocks would beg, without doing any calculations, say whether or not this could be a reasonable value for the acceleration. b. Draw and label a free body diagram (FBD) for each block. (Be sure your drawings show clearly any information you know about the directions and relative magnitudes of the forces.) Rank the relative magnitudes of all forces in your FBDS. (I'm looking for a single ranking that includes every different force drawn and labeled in both FBDS, separated by <, >, or =.) heavy block: light block:

3. Two blocks with unequal masses, M and m (M> m), are connected by a light, very long string passing over a pulley of negligible mass, as shown in the figure, and then released. Friction is negligible. 4 a. If one of your classmates calculated that, once released, the acceleration of the blocks would beg, without doing any calculations, say whether or not this could be a reasonable value for the acceleration. b. Draw and label a free body diagram (FBD) for each block. (Be sure your drawings show clearly any information you know about the directions and relative magnitudes of the forces.) Rank the relative magnitudes of all forces in your FBDS. (I'm looking for a single ranking that includes every different force drawn and labeled in both FBDS, separated by <, >, or =.) heavy block: light block:

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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3. Two blocks with unequal masses, M and m (M> m), are connected by a light, very long string passing over a pulley of negligible mass, as shown in the figure, and then released. Friction is negligible. a. If one of your classmates calculated that, once released, the acceleration of the blocks would be g, '6 without doing any calculations, say whether or not this could be a reasonable value for the acceleration. Draw and label a free body diagram (FBD) for each block. (Be sure your drawings show clearly any information you know about the directions and relative magnitudes of the forces.) Rank the relative magnitudes of all forces in your FBDS. (I'm looking for a single ranking that includes every different force drawn and labeled in both FBDS, separated by , or =.) heavy block: b. light block: relative sizes of all forces in FBDS: C. Use the FBDS from the previous part, and Newton's 2nd Law, to derive an expression (in terms of M, m and g) for the acceleration of the blocks once…
11. A Honda city car is traveling at 54 km/h. If brakes are applied so as to produce uniform retardation of 3m/s². Calculate the time taken by it to stop.? a. 5sec b. 10sec С. 1sec d. None of these
7. Which of the following is the condition for the three-force theorem in mechanics? a. The force system should be in equilibrium only b. The force systems should be non-coplanar c. The system should be co-planar, parallel d. The force system should be in equilibrium, co-planar, concurrent, or parallel 8. Which of the following is the SI unit of force? a. Kg m b. Kg m2 c. Kg m2 /s d. Kg m/s2
2. A baggage handler drops your 10.0 kg suitcase on a conveyor belt running at 2.0 m/s. The materials are such that us = 0.50 and k = 0.30. How far is your suitcase dragged before it is riding smoothly on the belt?
4. A block of mass m [kg] is released a distance L [m] from a massless spring with force constant k [N/m](see image below). Assuming the surface of the incline is frictionless, find the maximum compress of the spring.
1. Two masses m, and m, are connected by a string which passes over a massless, frictionless pulley. Mass m, > m,. When released from rest the acceleration of the system is: т+ m, а. д m- m 1 m,- m. 1 2 b. g m,+ m, m. С. д m,- m m,m, d. g т,-т, т, е. д m,+ m, 1
A block rests on a rough surface inclined at an angle e. (Note that o is the angle of friction.) 1.What happens if e 4? A. The motion is impending. B. Kinetic friction then exists. C. The static friction is fully utilized. D. The block is stationary. Answer: (Write the answer in UPPERCASE. Do not include periods or spaces.)
9. Consider the falling object of mass 10 kg in Example 2, but assume now that the drag force is proportional to the square of the velocity. a. If the limiting velocity is 49 m/s (the same as in Example 2), show that the equation of motion can be written as 1 (49² - 1²). 245 dy dt Also see Problem 21 of Section 1.1. b. If y(0) = 0, find an expression for v(t) at any time. Gc. Plot your solution from part b and the solution (26) from Example 2 on the same axes. d. Based on your plots in part c, compare the effect of a quadratic drag force with that of a linear drag force. e. Find the distance x(t) that the object falls in time t. Nf. Find the time T it takes the object to fall 300 m.
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The tension on the string of the simplependulum is 8.5 N when it is inclined 30degrees from the vertical. The mass of thependulum is 0.5 kg and the length of the stringis 2 m. What is the resultant acceleration of thependulum at this instant?a. 5.62 m/s2 b. 8.16 m/s2c. 6.66 m/s2 d. 9.81 m/s2
1 V:IV H.W.docx H.W: Two boxes are connected by a cord running over a pulley. The coefficient of kinetic friction between m, (5kg) and the table is 0.20. We ignore the mass of the cord and pulley and any friction in the pulley, which means we can assume that a force applied to one end of the cord will have the same magnitude at the other end. We wish to find the acceleration, a, of the system, which will have the same magnitude for both boxes assuming the cord doesn't stretch, As m (2Kg) move down, m,move to the right. m. د قوة الشد Tو تسارع النظام .a علما بأن البكرة مهملة الكتلة والاحتكاك؟ 出 1