Problem#3 (10 points): A flywheel with a mass moment of inertia is 0.72 Kg m2 starts...
1. The pulley has a radius of 2.70 m and a moment of inertia of 39.0 kg·m2. The hanging mass is 4.20 kg and it exerts a force tangent to the edge of the pulley. What is the angular acceleration of the pulley? (answer needed in rad/s^2 2. A string is wound tight around the spindle of a top, and then pulled to spin the top. While it is pulled, the string exerts a constant torque of 0.150 N·m on...
1. A solid cylinder has a mass of 5 kg and a radius of 30 cm. A torque of 40 Nm is applied to the cylinder. What will be its angular acceleration? a) 37.5 rad/s2 b) 59.3 rad/s2 c) 89.0 rad/s2 d) 178 rad/s2 2. When an object is in static equilibrium a) the net force on it is zero b) the net torque on it is zero c) the net force and net torque are zero d) not enough...
The moment of inertia of the human body about an axis through its center of mass is important in the application of biomechanics to sports such as diving and gymnastics. We can measure the body's moment of inertia in a particular position while a person remains in that position on a horizontal turntable, with the bodys center of mass on the turntable's rotational axis. The turntable with the person on it is then accelerated from rest by a torque that...
QUESTION 11 At the instant shown, the 30-kg disk has a counterclockwise angular velocity of 10 rad/sec. Determine the angular acceleration of the disk at this instant (Hint: The polar mass moment of inertia 4.05 Kg.m2. O 10 rad/s 0.3 m ad/sec2 5.19 r 15.57 rad/sec2 30 rad/sec? None of the choices is correct QUESTION 11 At the instant shown, the 30-kg disk has a counterclockwise angular velocity of 10 rad/sec. Determine the angular acceleration of the disk at this...
1. IP A turntable with a moment of inertia of 5.2×10−3 kg⋅m2 rotates freely with an angular speed of 3313rpm . Riding on the rim of the turntable, 19 cm from the center, is a cute, 32 g mouse.A) If the mouse walks to the center of the turntable, will the turntable rotate faster, slower, or at the same rate? (Answer is Slower)B) Explain.C) Calculate the angular speed of the turntable when the mouse reaches the center.2. One elevator arrangement...
Two objects, A with mass mA=0.25 kg and B with mass mB=1.25 kg, are held at rest on a spring is released, A has a kinetic energy of 22 J and B has a kinetic energy of A) 110 J g is compressed between them. Immediately after the B) 5.5J C) 11 J D) 4.4 J E) 19.4 J 18. A certain wheel has a rotational inertia of 12 kg m2. As it turns through 5.0 rev its angular velocity...
Question 1 of 3 Question 1 2.5 points Save Answer Determine the mass moment of inertia of the pendulum about an axis perpendicular to the page and passing through point O The slender rod has a massi of 10 kg and the sphere has a mass of 30 kg kg m2 (A 0.675 B. 9.195 C. 9.870 D. 7.971) the mass moment of inertia, lo (Choose the correct answer. If the correct answer is B. 490.5 type B or b...
Work out the highlighted questions (3-6) clearly and with units, please. Thanks! 4/5 a the minimum kinetic energy at the apping point? (C) Use conservation of energy to determine the minimum angular velocity of the block just after the collision, (d) then use conservation of angular momentum during the collision to find the initial speed of the bullet vo. (Hint: Ignore the mass of the bullet after the collision. The moment of inertia of the cube about its bottom-right edge...
We wish to determine the moment at the shoulder that is required to perform the arm motion (shoulder abduction) depicted in Figure 3 below. This motion may be modelled with a simple, single- element linkage system as shown in the figure. The shoulder joint is represented by a simple pin support centred at O. The arm and the carried weight are represented as a rigid body consisting of a rod and a cuboid. In the rigid body model, the length...
10) The mass of the Earth is 5.98 x 10"ks the mass of the Moon is 7.35 x 10 kg and the distance from the Earth to the Moon is 3.84 x 10' m Determine, in the force of attraction between the Earth and the Moon a) 7.63 x 10 b) 3.74 x 10 c) 199x10 d) 8.49 x 10" Answer 11) A wheel has a moment of inertia of 1.0 x 10kgm. Determine the set torque. in Nm, that...