Solve Q17 Q.15: The angular posltion (s yall) of a swinging () rigid body is given by:()(!) = (--43 + 2t2 + 1001 + 5) radThe magnitude of the angular velocity (in rad/s) of this body at t = 1 sec is:В. 18C. 23D. 92E.A. 9.8Q.16: At t = 0, a wheel (Jac) rotating about a fixed axis at a constant angular acceleration hiangular speed of 2 rad/s. Two seconds later it has turned through 5 complete revolutions (The magnitude of the angular acceleration (in rad/s³) of this wheel is:(Hint: one revolution equals 2n rad}.A. 2.65Q.17: The disc in the adjacent figure has radius R and rotates () with an angular speed w alaxle (J) passing through point o and perpendicular (sc) to the plane of the disc. Let w, arepresent the angular speed, angular acceleration and linear speed,respectively (all ole). If points A, B, and C lie at the rim (a) of the disc,then which of the following statements is entirely (4S) correct:A. VA > Va> Vc and wa = Wa = wsB. VA = Va = Vc and wa > wa> wcC. an >ag >ac and VA = Vy = VcD. WA = Wg = wcand Vc> Va > VA[. WA = Wn = wc and VA = Va = VcQ.18: A rigid body rotates around an axis that passes through the origin and perpendicular to itssurface. A force = (2i + i -k)N acts on the rigid body at the point (1, –1, 1) m.The magnitude of the torque (in N.m) due to this force calculated about the origin is:A. 2.1B. 5.0С. 13.7D. 9.8E.B. 4.2С. 6.0D. 18E. 23Q.19: A 2-kg particle has its position in the XY-plane given by:F(1)={(21 + 5)i + (1 - 3! +1)i1, where t is in seconds and r is in meters. The magnitude ofthe angular momentum (measured in kg.m²/s Jof the particle with respect to the origin at t = 1 sec iA. 2В. 6С. 8D. 10E. 12Q.20: in the adjacent figure, a very light rope is wrapped around a wheel of radiusR = 2 m. The wheel can rotate around an axle that is passing through its centerand perpendicular to its surface. A block of mass 14 kg is suspended (i) from-he end of the rope. When the system is released from rest it is observed that the-lock descends () with constant acceleration of magnitude 5 m/s.he moment of inertia (measured in kg.m) of the wheel relative to the rotation-ie is:14 kgB. 37.2E. 53.89.8С. 12.824.3انتهت الأستلةنتمنى لكم امتحانا موفقا3

D. 9.8 E. In the adjacent figure has radius R and rotates () with an angular speed w a axle (J) passing through point o and perpendicular (sgc) to the plane of the disc. Let w, a represent the angular speed, angular acceleration and linear speed, respectively (ell olk). If points A, B, and C lie at the rim (la) of the disc, then which of the following statements is entirely (Lus) correct: A. VA> Va > Vc and wA = Wa = W

D. 9.8 E. In the adjacent figure has radius R and rotates () with an angular speed w a axle (J) passing through point o and perpendicular (sgc) to the plane of the disc. Let w, a represent the angular speed, angular acceleration and linear speed, respectively (ell olk). If points A, B, and C lie at the rim (la) of the disc, then which of the following statements is entirely (Lus) correct: A. VA> Va > Vc and wA = Wa = W

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter10: Rotation Of A Rigid Object About A Fixed Axis

Section: Chapter Questions

Problem 10.3OQ: A wheel is rotating about a fixed axis with constant angular acceleration 3 rad/s2. At different...

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