Compute the combined moment of the two 75-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 8.2 in., b = 3.9 in., F = 75 lb. y F. F Answers: (a) Mo= i (b) MA= i lb-in. lb-in.
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Q: Compute the combined moment of the two 60-lb forces about (a) point O and (b) point A. The moment is…
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A: Solution: P = 37 N angle = 48 degree
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- A 480-N force P is applied at point A of the bell crank shown. If a1= 20°, a2= 35°, a= 210mm and b= 70mm, Compute the moment of the force P about O in N.m unit P 0Tーーューー- a 48° b. Yanıt: Determine the magnitude of the smallest force Q (in N unit) applied at B that has the same moment as P about O.58.1% Lx Give Up? E Feedback Resources Resum O NAttempt While exercising in a fitness center, a man lies face down on a bench and lifts a weight with one lower leg by contracting the muscles in the back of the upper leg. The weight has mass 11.5 kg, and is a distance of 28.0 cm from the knee joint. The moment of inertia of the lower leg is 0.900 kg · m², the muscle force is 1470 N, and its effective perpendicular lever arm is 3.45 cm. Find the magnitude of the angular acceleration a of the weight. a = 25.9918 rad/s? Incorrect How much work W is done if the leg rotates through an angle of 10.0° with a constant force exerted by the muscle? W = 8.1728 Incorrect Question Credit: OpenStax College Physics about us careers privacy policy terms of use contact us help 8:33 11/15Compute the combined moment of the two 9O-lb forces about (a) point O and (b) point A. The moment is positive if counterclockwise, negative if clockwise. Assume a = 6.2 in., b = 2.7 in., F = 90 lb. y | F. |A F Answers: (а) Мо 3D i Ib-in. (b) МА %3D i Ib-in.
- As a torque activity, your Physics TA sets up the arrangement shown below. 3 fp = 8 F = 7₁ → A uniform rod of mass m, = 138 g and length L = 100.0 cm is attached to the wall with a pin as shown. Cords are attached to the rod at the r₁ = 10.0 cm and r₂ = 90.0 cm mark, passed over pulleys, and masses of m₁ = 266 g and m₂ = 157 g are attached. Your TA asks you to determine the following. (a) The position r3 on the rod where you would suspend a mass m3 = 200 g in order to balance the rod and keep it horizontal if released from a horizontal position. In addition, for this case, what force (magnitude and direction) does the pin exert the rod? Use standard angle notation to determine the direction of the force the pin exerts on the rod. Express the direction of the force the pin exerts on the rod as the angle 8, measured with respect to the positive x-axis (counterclockwise is positive and clockwise is negative). m4 Fp = 8 F = m N m₁ m₂ (b) Let's now remove the mass m3 and determine the new…The figure below shows a small block of mass m = 4.50 kg sliding without 9.50 m/s. It undergoes a perfectly elastic collision with 18.0 kg. The rod 4. friction with a speed of vo the bottom of a uniform rod of length d : is pivoted about a frictionless axle through its center, and initially hangs straight down and is not moving. 3.00 m and mass M m Vo 2013 Penon Baion, e Determine the velocity (both speed and direction) of the block after (a) the collision? [Hint: Recall, an elastic collision is one in which the kinetic energy is conserved.]Needs Complete typed solution with 100 % accuracy.
- help pls asap not in scientific notation plsDetermine the angular momentum of a 78-g particle about the origin of coordinates when the particle is at x = 4.9 m, y = -6.3 m, and it has velocity v = (3.51-80k) m/s. Find the x-component. Express your answer using two significant figures. Lx = ΜΕ ΑΣΦ Submit Request Answer ▼ Part B Find the y-component. Express your answer using two significant figures. Ly= ΜΕ ΑΣΦ Submit Request Answer Part C Find the z-component. Express your answer using two significant figures. ? kg-m²/s ? kg-m²/sIn the figure, a small 0.289 kg block slides down a frictionless surface through heighth - 0.523 m and then sticks to a uniform vertical rod of mass M-0.578 kg and length d - 2.61 m. The rod pivots about point O through angle before momentarily stopping. Find 9. A
- I need help with this problem. ThanksThe 29-N force P is applied perpendicular to the portion BC of the bent bar. Determine the moment of P about point B and about point A. Moments are positive if counterclockwise, negative if clockwise. Ariswers: M₂- i MA-1 P = 29 N 1.2 m B 47° 1.2 m N-m N-mProblem 04.096- Resultant Force and Moment of a System of Forces The structure has two frictionless pulleys around which a string is wrapped. If W=56 lb, determine a force system that is equivalent to the forces applied by the string, where this force system consists of a single force, and specify the x coordinate of the point where the force's line of action intersects the x axis. (Round the final answers to four decimal places. Do not include a minus sign in your response.) 20 in. r = 2 in. 5 in. 4 in. The value of (FR)x of the equivalent force system is The value of (Fray of the equivalent force system is lb 1. The x coordinate of the point where the equivalent force's line of action intersects the xaxis is lb-. In.