A D r= 20 ft B

Q: A rollercoaster rolls thru a vertical circular loop with a radius of 28 m. Find the minimum speed at…

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Q: A new roller coaster contains a loop-the-loop in which the car and rider are completely upside down.…

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Q: Estimate the kinetic energy of the Mars with respect to the Sun as the sum of the terms, that due to…

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A: SOlution: Given that h = 4 m v = 6 m/s r = 21 m

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A: The given data:   The mass of the ball, m = 0.50 Kg The radius of the curvature, R = 0.80 m

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Central Force

Central force is the force that acts along the center of mass of one body to the center of mass of another body. Its direction from or away from a point on a body to another is called the center of the force. Such forces include gravitational force between two massive objects or electrostatic forces between two charged particles. So from atoms to planets, the central forces play an important role in shaping our daily lives. One of the remarkable features of central forces is that they are conservative, i.e. the total energy of a central force system can always be expressed as a gradient of a potential energy function.