science
Grade8
Easy
Question
A ball is tied to a string and is swirled around in a circular path. What would happen if the string broke accidentally?
(a) The ball keeps moving in the circular path
(b) It directly falls towards the ground
(c) The centripetal force is withdrawn
(d) It flies away in a tangential direction.
- Only (a) and (b) are correct
- Only (b) and (c) are correct
- Only (c) and (d) are correct
- None is correct
Hint:
Tension in the string is responsible for centripetal force.
The correct answer is: Only (c) and (d) are correct
Here, the correct option is 'C' i.e; both c and d are correct. As we know here the tension in the string is providing the net centripetal force so when the string gets broken centripetal force is withdrawn. The body now leaves its circular path and moves in the tangential direction because at each point the velocity is perpendicular to the acting centripetal force.
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