QUESTION 5 A figure skater is spinning with an angular velocity of Il rad/s. She then...
QUESTION 8 Calculate the moment of inertia of a skater assuming the following model. The skater is approximated as a cylinder (mass of 59 kg and radius 0.11 m) and with arms approacimated as two long rods (mass of 0.9 kg and length 0.95 m for each) extend straight out from the axis of the cylinder Express your answer in Sl units with 3 or more significant Sgures QUESTIONS A playground merry-go-round (a disk) has a mass of 112 kg...
QUESTION 1 Determine the angular velocity of the second hand, in degree/second, of a mechanical clock QUESTION 2 What is the angular velocity in Sl units of the hour hand of a mechanical clock? 1.74 x 10-3 radis 727 x 10-5 radis 0.105 radis 1 45 x 10-radis QUESTION 3 At its peak a tornado is 549 m in diameter and carries 253 MPH winds. What is its angular velocity in Sl units? Express your answer with 3 or more...
A figure skater is spinning with an angular velocity of +13.4 rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is +5.81 rad. Determine (a) her average angular acceleration and (b) the time during which she comes to rest.
A figure skater is spinning with an angular velocity of +12 rad/s. She then comes to a stop over a brief period of time. During this time, her angular displacement is +9.0 rad. (a) Determine her average angular acceleration. __rad/s2 (b) Determine the time during which she comes to rest. ___s
Part A What is the angular momentum of a figure skater spinning at 2.8 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.5 m. a radius of 15 cm. and a mass of 48 kg ? Express your answer using two significant figures. Part B How much torque (in magnitude) is required to slow her to a stop in 4.8 s. assuming she does not move her arms? Express your answer using two...
Calculate the moment of inertia for each scenario: (a) An 80.0 kg skater is approximated as a cylinder with a 0.140 m radius. (b) The skater extends both her arms, each of which is approximated as a 4.00 kg rod with length 0.850 m rotated about its end. (c) Calculate the angular velocity of the skater during scenario (b) if her angular velocity during scenario (a) is 6.75 rad/s.
The angular velocity of link AB is WAB = 3 rad/s. (Figure 1) Figure < 1 of 1 2 m Determine the velocity of block C at the instant 0 = 45° and 0 = 30° Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is directed to the right and negative value if the velocity is directed to the left. μΑ ] ? Value Vc Units Part B Determine the...
The link AB has an angular velocity of 2.1 rad/s (Figure 1) Part A Determine the velocity of block C, at the instant θ 45° Express your answer to three significant figures and include the appropriate units. Enter positive value if the velocity is directed to the left and negative value if the velocity is directed to the right. ucValue Units Submit Request Answer Part B Figure 1of 1 > Determine the angular velocity of link BC at the instant...
What is the angular momentum of a figure skater spinning at 3.5 rev/s with arms in close to her body, assuming her to be a uniform cylinder with a height of 1.6 m , a radius of 13 cm, and a mass of 60 kg? B.) How much torque is required to slow her to a stop in 5.8 s, assuming she does not move her arms?
A disk of mass 5 kg and radius 1 m is rotating with an angular velocity of ?0 = 11 rad/s . A lump of clay of mass 3 kg is dropped onto the disk at a radius of 0.5 m , sticking to the disk. What is the final angular velocity of the disk? (Idisk = MR2/2 )