Magnitude of centripetal acceleration of the car question
A car travels at a constant speed around a circular track whose radius is 2.0 km. The car goes once around the track in 360 s. What is the magnitude of the centripetal acceleration of the car?
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A 0.075 kg toy airplane is tied to the ceiling with a string. When the airplane's motor is started, it moves with a constant speed of 1.33 m/s in a horizontal circle of radius 0.47 m, as illustrated in Figure 6-40. Find the angle the string makes
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The coefficient of kinetic friction between the sledge and surface is 0.500. What is the mechanical energy lost due to friction?
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