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NCERT Exemplar Solutions Class 9 Science Solutions for Gravitation - Exercise in Chapter 10 - Gravitation

Question 4 Gravitation - Exercise

A boy is whirling a stone tied with a string in a horizontal circular path. If the string breaks, the stone

(a) will continue to move in the circular path

(b) will move along a straight line towards the center of the circular path

(c) will move along a straight line tangential to the circular path

(d) will move along a straight line perpendicular to the circular path away from the boy

Answer:

The answer is (c) will move along a straight line tangential to the circular path

Explanation:

At any instance of time objects in circular motion tend to be in rectilinear motion. The object keeps on moving due to centripetal force and it moves along a straight line tangential to the circular path when strings break.

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