Radius of gyration of a rotating disc about an axis perpendicular to its plane passing through it centre is (If R is the radius of the disc)
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Radius of gyration of a rotating disc about an axis perpendicular to its plane passing through it centre is (If R is the radius of the disc)
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- Earth’s diameter is approximately 8000 miles. Estimate the speed of a point on Earth’s equator as it’s carried around with Earth’s rotation.A high-speed sander has a disk 4.10cm in radius that rotates about its axis at a constant rate of 1250 revolutions per minute. a) Determine the angular speed of the disk in radians per second. b) Determine the linear speed of a point 1.80cm from the disk's center c) Determine the centripetal acceleration of a point on the rim. d) Determine the total distance traveled by a point on the rim in 1.80s.Two gears are connected to each other, their radius is 0.15m and 0.5m. Calculate the revolutions that the small gear completes when the big gear completes 3 revolutions
- A rock is wedged in the tread of wheel of a car and is 0.114 meters away from the center the axis of rotation). Calculate the tangential speed (in meters/second) of the rock when the wheel is rotating at 6.53 revolutions/second. Express your answer without units and as a positive number with two decimals.Number 4 needs answeredWhat is the angle between the vectors a = (10, -10, 0) and b = (-5, 5, 2), in radians?