The uniform 110-lb beam is initially at rest when the forces are applied to the cables. Set F = 80 lb and FB = 190 lb .(Figure 1) Figure FA 12 ft < B 1 of 1 > FB 60° Determine the magnitude of the acceleration of the mass center at this instant. Express your answer to three significant figures and include the appropriate units. aG = Part B Submit Request Answer Value α = μА O Determine the angular acceleration of the beam at this instant. Express your answer to three significant figures and include the appropriate units. μA Value Units ? Units ?
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- Newton's second law for linear motion is mà The equivalent form for rotational motion is - là, where is torque, I stands for the moment of inertia, and is the angular acceleration. The effectiveness of the applied torque is determined by: O The amount of Force applied The distance of the applied force from the axis of rotation. O The angle between the applied force vector Fand the vector distance from the axis of rotation to the applied point of the force O All of the aboveCalculate the net torque about point O for the three forces (F₁=15.7 N, F₂=17.8 N and F3-20 N) applied on the rod as shown in the figure, where =25.2°. The rod and all forces are in the plane of the page. Assume the z-axis to be the axis perpendicular to the page. -12.0 m- 13.00 m 90.0⁰ 00 F₁ -4.00m- F2 10.3 m.N, about the z-axis 147 m.N, about the z-axis -66.5 m-N, about the z-axis 308 m.N, about the z-axis F3Plz use g = 9.8 m/s2 to find if needed
- The 47-kg flywheel has a radius of gyration of ko = 300 mm about its center of mass. (Figure 1) Figure Part A W = If it is subjected to a torque of M = (90¹/2) N m, where is in radians, determine its angular velocity when it has rotated 3 revolutions, starting from rest. Express your answer to three significant figures and include the appropriate units. μà Value Submit Request Answer www. ? M = (9 0¹/2) N.m Units 1 of 1The uniform solid block in the figure has mass 38.6 kg and edge lengths a = 0.543 m, b = 1.75 m, and c = 0.118 m. Calculate its rotational inertia about an axis through one corner and perpendicular to the large faces. Rotation axis Number i UnitsThe uniform solid block in the figure has mass 40.4 kg and edge lengths a = 0.506 m, b = 1.35 m, and c = 0.0554 m. Calculate its rotational inertia about an axis through one corner and perpendicular to the large faces. Rotation axis Number Units
- Q1 The angular position of a point on a rotating wheel is given by θ = 3.02 + 7.63t2 + 3.84t3, where θ is in radians and t is in seconds. At t = 0, what are (a) the point's angular position and (b) its angular velocity? (c) What is its angular velocity at t = 7.22 s? (d) Calculate its angular acceleration at t = 1.03 s. (e) Is its angular acceleration constant?Q5 The uniform solid block in the figure has mass 33.7 kg and edge lengths a = 0.950 m, b = 1.36 m, and c = 0.0821 m. Calculate its rotational inertia about an axis through one corner and perpendicular to the large faces.Computation. A uniform solid sphere has mass M = 8.9 kg and radius R = 0.2 m. What is its moment of inertia about an axis tangent to its surface? I- 2 kg .m² Record your your numerical answer below, assuming three significant figures. Remember to include a as necessary.
- Which of the following statement is false? A Unit of Torque is Newton Meter. В None of the above. Angular acceleration of object is zero if it is not rotating or rotating with constant angular velocity. An object is said to be in equilibrium if and only if there is no resultant force and no resultant torque. E An object is said to be in equilibrium if and only if there is no resultant force and no resultant torque.The uniform solid block in the figure has mass 30.9 kg and edge lengths a = 0.614 m, b = 1.51 m, and c = 0.0972 m. Calculate its rotational inertia about an axis through one corner and perpendicular to the large faces. Rotation axis Number i UnitsQuestion 4 1 pts A clockwise torque is O negative O positive O torques are always positive Question 5 1 pts Saying that the Sum of torques is zero is the same as saying that the magnitude of clockwise torques is O cqual to the magnitude of counterclockwise torques O opposite to the magnitude of counterclockwise torques O zero Question 6 1 pts For this week's lab, once the pivot is moved away from the center of gravity, the lever arm for the torque of the weight is: O distance between the center of gravity and the position of the pivot O zero O position of the pivot