For the system shown in the figure, the cylinder rolls without slipping. What is the acceleration of mass M/4? T M M/4| ICM=1/2 MR?
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A: Mass = 40 kg R = 2 m H = 2 m
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Q: A medical saw is rotating at a constant rate of 15 revolutions per second. Convert its rotation to…
A: Given: Angular velocity (ω) = 15 rev/s Required: Angular velocity in rad/s
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Q: You have a grindstone (a disk) that is 93.0 kg, has a 0.370-m radius, and is turning at 71.0 rpm,…
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Q: The SI unitfor angular acceleration m/s^2 rad/s rad/s^2 non
A: angular acceleration is simply the change of angular velocity in some given interval of time.
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Q: You have a grindstone (a disk) that is 81.0 kg, has a 0.430-m radius, and is turning at 89.0 rpm,…
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Q: A cyclist starts from rest and pedals such that the wheels of his bike have a constant angular…
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- A turn table starts from rest and reaches 11 rad/s of angular velocity in 9.5 s. Find the angular acceleration in rad/s/s. Answer:A gyroscope slows from an initial rate of 58.8 rad/s at a rate of 0.801 rad/s². (a) How long does it take (in s) to come to rest? S (b) How many revolutions does it make before stopping? revYou have a grindstone (a disk) that is 77.0 kg, has a 0.400-m radius, and is turning at 89.0 rpm, and you press a steel axe against it with a radial force of 16.0 N. (a)Assuming the kinetic coefficient of friction between steel and stone is 0.50, calculate the angular acceleration (in rad/s2) of the grindstone. (Indicate the direction with the sign of your answer.) rad/s2 (b)How many turns (in rev) will the stone make before coming to rest? rev
- A person pushes on a lever 0.7 meters away from the axis of rotation with 100 N of force. The rotational inertia of the lever is 35 kg*m2. Calculate the angular acceleration of the lever.In the figure below, wheel A of radius A = 14 cm is coupled by belt B to wheel C of radius c 20 cm. The angular speed of wheel A is increased from rest at a constant rate of 1.6 rad/s². Find the time needed for wheel C to reach an angular speed of 150 rev/min, assuming the belt does not slip. S B C TGA 1.0-kg mass hangs on a rope wrapped around a frictionless disk pulley of mass 5 kg and radius 0.5 m. What is the acceleration of the mass? (The moment of inertia of the pulley is 1/2MR2.)
- A turntable rotates with a constant 2.25 rad/s² angular acceleration. After 4.50 s it has rotated through an angle of 30.0 rad. What was the angular velocity of the wheel at the beginning of this interval?Rev/min 400 300 200 100 0 0 1 2 3 4 5 Time (s) T T 6 7 8 The angular velocity versus time for a fan on a hovercraft is shown above. Determine the number of revolutions in the first 7.38 seconds.A wheel is turning at 55 rad/s, and is slowing due to friction at a rate of -1.7 rad/s^2. a.) how long will the wheel turn before coming to rest?____ s (2 significant figures-round to the ones place) b.) how far will the wheel turn before coming to rest? ____radians (2 significant figures- round to the tens place)