Consider a block of mass m=5 supported by two strings. String one is set at a = 45 degrees and string two is set at B = 30 degrees. T1 T2 T3 m a) Draw the freebody diagram for the system b) Sum the forces for the system. c) Determine T1. (it does not matter if you do T1 first or T2.) d) Determine T2.
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- Part A Find the magnitude of the force the Sun exerts on Neptune. Assume the mass of the Sun is 2.0x1030 kg, the mass of Neptune is 1.02x1026 kg, and the orbit is 4.50x10° km. Express your answer with the appropriate units. HÀ F = Value Units Submit Request Answer Ne Provide Feedback 4 MacBook F7Questions 5 and 6 refer to the diagram below. m A box of mass m is being pushed up a ramp by a force F acting along the ramp, as shown. The ramp makes an angle to the horizontal, and the coefficient of kinetic friction between the box and the ramp is μ. The normal force and the frictional force exerted on the box are F and f, respectively. 5. Which of the following free-body diagrams correctly shows the forces exerted on the box as it moves up the ramp? (A) (E) FN F F mg mg mg (B) A ohibitedRprint F FN mg Unauthorized copying or reuse of any part of this page is illegal. -8- GO ON TO TI 6. If the force F has a magnitude of 2mg, which of the following is a correct expression for the acceleration of the box? (A) g sine (B) 2g (C) 8 (D) (2-cos@)g (E) g(2 sine cose) - -A uniform wire with mass M and length L is bent into a semicircle. Part A Find the magnitude of the gravitational force this wire exerts on a point with mass m placed at the center of curvature of the semicircle. Express your answer in terms of G, M, m, L, and T. F =
- A 30kg barrel of oil is sitting in a holding container consisting of two walls one at an angle of 60o from the horizontal, and the other wall at 40o from the horizontal. What are the normal forces acting on the walls – N1 and N2? Draw a free body diagram and a resolved free body diagram.A cannonball has just been shot out of a cannon aimed 45∘ above the horizontal rightward direction. Drag forces cannot be neglected.Which way does drag point? I thought it points opposite of the direction of the motion.Newton's first law states that: Group of answer choices Ia. n the absence of any net force acting on it, a mechanical system is necessarily at rest. b. In the absence of a non-zero net force acting on it, a mechanical system keeps moving in the same direction at the same speed (including the case v=0). c. For any pair A/B of objects interacting with one another, the force of A acting on B is the equal-opposite of the force of B acting on A. d. The rate of change of the velocity of a system is proportional to the net force acting on it.
- A) Write an expression for the component of net force, Fnetx, in the x-direction, in terms of the variables given in the problem statement. Fnetx= Part (c) Write an expression for the magnitude of the normal force, F, acting on the block, in terms of F2, g, and the other variables of the problem. assume that the surface it rests on is ridged Part (d) Find the block's acceleration in the x-direction, ax, in meters per second squared.v Question Completion Status: QUESTION 18 As shown in the figure below, a force pushes two mass bodies (mass m, and m) together moving to right horizontally with a constant acceleration on a frictionless and as shown above. With E=10 N, m, = 11 kg, and m,= 13 kg, what is the surface, In the contact surface between m, and m., there are contacting forces E 21 magnitude of F, N Please write your numerical answer with all digits and do not use (Note: For fill in blank, I have set the unit for the answer. So, you just need to provide a number scientific notation. If you are not sure about the number of significant figures, you can keep the number of figures as many as possible - You will not be punished for doing this.) F21 m1 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search