The source of the centripetal force that keeps the Earth revolving around the Sun is _____.
A 1.50-kilogram ball is attached to the end of a 0.520-meter string and swung in a circle. The velocity of the ball is 9.78 m/s. What is the tension in the string?

Respuesta :

The correct answer to the question stated above is :

The source of the centripetal force that keeps the Earth revolving around the Sun is the gravitational pull of the sun. 
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The gravitational attraction by the sun combined with the fact that the planets are moving sideways, causes the earth and all other planets to revolve around the sun.