Is moving at constant speed in a circle. The acceleration of the object at any g

Question

Is moving at constant speed in a circle. The acceleration of the object at any given moment is directed _________. outward, away from the center of the circle tangent to the circle inward, towards the center of the circle Nonsense! There is never a direction associated with the acceleration. No such generalization can be made about the direction of the acceleration vector. A 3.30-kg bucket of water is suspended from a string and swung in a vertical circle. The radius of the circle is 0.990 meters. The speed at the bottom of the circle is 6.60 m/s. Determine the magnitude of the net force on the bucket. 177 N 145 N 54 N 22 N Suppose that an object weighs 20 Newton on the surface of the earth (a distance of R from its center). If the same object is located a distance of R above the Earth's surface (a distance of 2R from its center), then the force of gravity upon it would be ________ Newton. 5.00 10.0 14.0 20.0 40.0 What's the force of gravitational attraction between Mars and its moon Phobos? The mass of Mars a 6.39 times 10^25 kg, the mast of Phobos is 1.07 times 10^16 kg, and the mean orbital radius for Phobos is 9, 376,000 m. 5.2 times 10^15 N 4.9 times 10^22 N 7.3 times 10^32 N 7.8 times 10^25 N A spinning ice skater pulls their arms and legs inward and in so doing increase then angular speed. Which is the best explanation for why the angular speed increases? Rotational kinetic energy is conserved. Angular momentum is conserved. Potential energy is conserved. Linear momentum is conserved. A stationary but spinning wheel with angular speed of 5.00 radians/second has a rotational kinetic energy of 250 J. What is the moment of inertia for the wheel? 5 kg*m^2 10 kg*m^2 20 kg*m^2 100 kg*m^2 An automatic washer spins wet clothes at an angular of 6.3 rad/s. Starting from rest, the washer reaches this operating speed with an angular acceleration of 4.0 rad/s^2. How much time does this take? 0.635 s 1.58 s 10.3 s 12.6 s

Explanation / Answer

here,

when an object is moving at constant speed in a circle

the accelration of the object at any given moment is directed outward ,away from the center of the circle

this accelration is known as centripital accelration

so the correct option is A)

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