Use Newton's Second Law for Rotation to calculate the tension in the string. We will assume that the friction forces are negligible. The mass of the disk is 2.776 kg.
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Use Newton's Second Law for Rotation to calculate the tension in the string. We will assume that the friction forces are negligible. The mass of the disk is 2.776 kg.
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- Please answer this within 30 mins ! I will upvote !A disk with uniform density and radius 0.551 m used to weigh 20.22 kg, but then a hole was punched out. The black arrow in the image above shows the axis of rotation. The hole has radius 00753 m, and has its center 0.103 m away from the center of the disk. What is the înoment of inertia of the disk with a hole? (Hint: only a scientist could call a hole negative mass! Find the mass taken away based on hole size and disk) Answer: Check Choose...A 10 kg wheel of radius 0.5 m rotates at an angular speed of 10 rad/s. Find the centripetal force ( lb force ) created by the wheel.
- A block of mass 2 kg slides down an inclined plane at an angle of 45° with a massless tether attached to a pulley with mass 3 kg and radius 0.7 m at the top of the incline (see the following figure). The pulley can be approximated as a disk. The coefficient of kinetic friction on the plane is 0.2. What is the acceleration of the block (in m/s²)? (Enter the magnitude.) 3.59 45° x m/s²You are on a Ferris Wheel that spins at 2.8 rpm. The ride is 29.8 m across. What is your apparent weight at the top of the ride if you have a mass of 87.6 kg?A man stands on a merry-go-round that is rotating at 2.13 rad/s. If the coefficient of static friction between the man's shoes and the merry-go-round is ?s = 0.63, how far from the axis of rotation can he stand without sliding? (Enter the maximum distance in meters.) m
- You have a disk that is 105 kg, has a 0.297-m radius, and is turning at 71.15 rpm, and you press a steel axe against it with a radial force of 46.65 N. Assuming the kinetic coefficient of friction between steel and stone is 0.451. How many turns will the stone make before coming to rest?Two buckets of mass ?1=17.5 kg and ?2=15.1 kg are attached to the ends of a massless rope which passes over a pulley with a mass of ?p=8.53 kg and a radius of ?p=0.450 m. Assume that the rope does not slip on the pulley, and that the pulley rotates without friction. The buckets are released from rest and begin to move. If the larger bucket is a distance ?0=2.05 m above the ground when it is released, with what speed ? will it hit the ground?