PRACTICE ANOTHER The figure shows an overhead view of a 2.20 kg plastic rod of length 1.20 m on a table. One end of the rod is attached to the table, and the rod is free to pivot about this point without friction. A disk of mass 450 g slides toward the opposite end of the rod with an initial velocity of 26.0 m/s. The disk strikes the rod and sticks to it. After the collision, the rod rotates about the pivot poist plo (e) What is the angular velocity, in rad/s, of the two after the collision? rad/s (b) What is the kinetic energy, in joules, before and after the collision? KE

I Re You're carrying a 3.6-m-long, 24 kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip. Part A For the steps and strategies involved in solving a similar problem, you may view a Video Tutor Solution. How much force must you exert to keep the pole motionless in a horizontal position? Express your answer in newtons. Vo AE F = N Submit Previous Answers Request Answer

Part A What is the angular momentum of a figure skater spinning at 2.6 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 15 m a radius of 16 cm, and a mass of 52 kg ? Express your answer using three significant figures and include the appropriate units. L= Value Submit Request Answer Units wg ?

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A Moving to another question will save this response. Question 6 The angular momentum of a system is conserved only if O the angular velocity is a function of time. O the sum of the external torques equals the sum of the internal torques O the moment of inertia of the system is constant O the sum of the external torques is zero. O the sum of the internal torques is zero.

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A system consists of three blocks with masses on a frictionless surface as shown in the figure below. Image size: s ML Max Part a The three blocks (from left to right in the figure) have masses of 3.51 kg, 1.09 kg and 7.17 kg. The leftmost block has a velocity of 3.34 m/s toward the right, the center block is stationary, and the rightmost block as a velocity of 2.71 m/s toward the left. Assuming movement toward the right is positive, what is the center of mass velocity of this system as pictured (prior to collision)? Please enter a numerical answer below. Accepted formats are numbers or "e" based scientific notation e.g. 0.23, -2, 1e6, 5.23e-8 Enter answer here m/s No answer submitted 0 of 3 attempts used CHECK ANSWER Part b !!! Contents Back Scroll To Top 13 PAGES NOV W 25

Part A A stone is suspended from the free end of a wire that is wrapped around the outer rim of a pulley, as shown in the figure (see the figure (Figure 1)). The pulley is a uniform disk with mass 11.6 kg and radius 48.0 cm and turns on frictionless bearings. You measure that the stone travels a distance 12.4 m during a time interval of 3.50 s starting from rest. Find the mass of the stone. Take the free fall acceleration to be 9.80 m/s. ΑΣφ kg Submit Request Answer • Part B Find the tension in the wire. Take the free fall acceleration to be 9.80 m/s². 圈] ? Submit Request Answer Provide Feedback Figure 1 of 1 MacBook Air

plz don't copy the same wrong Ans. Dynamics subject

Can you please answer b (in radians) and c?