Find the moment of inertia IZ
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A: Centripetal force (F)= mv2/r So, m = Fr/v2 m = (90×2)/2.22 m = 37.19 kg
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- ?Roads are often banked (see above) to make travelling around comers safer. In the case of a banked road where does the centripetal force come from? Select one: O a. The weight of the car Ob. The reaction force O Friction Answer: A highway corner of radius 350 m is banked at 15. A car of mass 1400 kg travels round this comerg=9.8m/s/s What is the value of the weight force? Answer State the size of the vertical component of the reaction force (F)? Answer F What is the size of the reaction force F? 15° Answer What is the size of the horizontal component of F? Answer Calculate the speed of the car Answer Calculate the time taken to travel around the corner. Assume the comer is one sixteenth of a circle.Please solve, thank you!
- 3. To loosen a rusty nut, a 20.00-N force is applied to the wrench handle at angle o=40° and at a distance of 0.25 m from the nut. Find the magnitude and direction of the torque applied to the nut. nut Rer... Leeds International... WolfBerry's Watch Video Question 11 A M1 Questions by To... YouTube Mail-Al Habsi, As... G3: (Ahmad, Asma,... 500 N Example 3. A rotor disc on a road vehicle has two tangential forces acting on it. The first force is caused by the engine which causes the rotor disc to accelerate, and has magnitude 2kN. The second force is caused by the friction in the bearings, and it opposes the driving rotation and has magnitude 250 N. The rotor disc has a diameter of 300mm, a thickness of 25mm and is manufactured from carbon ceramic having density 2450 kgm³. 2000 N JB29 CW3 Intr Model the rotor disc as a uniform solid cylinder. i. Derive an equation of motion that describes the system. ii. Calculate the angular acceleration of the rotor disc. iii. If the rotor disc starts from rest, calculate the angular speed of the rotor disc after 10 seconds. iv. Calculate the number of revolutions made in 10 seconds.F2 30.0 O K 2.00 m 3.00m->l Find the net (or total) torque about point O for the two forces as in the figure above. let F₁ = 7.80N and F₂=15. ON Express your answer in newton-meters. VF1
- 4. Calculate the vertical acceleration a of the 100-lb cylinder for each of the two cases illustrated. Neglect friction and the mass of the pulleys. 100 b 100 lb 150 it talA bug has a mass of 3 g and is rotating around acompact disk. Its velocity is 1.2 m/s. If the cd was rotating anyfaster, the bug would fly off. The coefficient of static frictionis 0.25.a) What is the magnitude of the frictional force on the bug?b) What is the magnitude of the centripetal force on the bug?c) What is the magnitude of the bug's acceleration?d) What is the radius of the cd?e) What is the period of one revolution for the bug?E15. Two 0.2-kg masses are located at either end of a 1-m long, very light and rigid rod as in the diagram. What is the rota- tional inertia of this system about an axis through the center of the rod?
- Can you help me solve this problem and draw a simple free body diagram? I will rate thank you!Two blocks are connected to a rope, and the rope is hung over a pulley connected to the ceiling, as shown in the figure below. 1721 Mo i The masses of the blocks are m₁ = 16.0 kg and m₂ = 11.5 kg, the mass of the pulley is M = 5.00 kg, and the radius of the pulley is R = 0.100 m. Block m₂ is initially on the floor, and block m₁ is initially 4.20 m above the floor when it is released from rest. The pulley's axis has negligible friction. The mass of the rope is small enough to be ignored, and the rope does not slip on the pulley, nor does it stretch. (a) How much time (in s) does it take block m, to hit the floor after being released? At₁ S (b) How would your answer to part (a) change if the mass of the pulley were neglected? (Enter the time, in seconds, it takes block m, to hit the floor if the mass of the pulley were neglected.) At₂When a fan is turned off, its angular speed decreases from 168 rpm to 64.0 rpm in 6.08 s. A) what is the angukar acceleration of the fan? B) How fast the edges of the blades are moving (in m/s) at time 6.08 s, if they are 86.0 cm long?