Science
Soni says that the acceleration in an object could be zero even when several forces are acting on it. Do you agree with her? Why?
Work, Energy & Power
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Answer
Acceleration in an object could be zero even when several forces are acting on it. This happens when all the forces cancel out each other i.e., the net force acting on the object is zero.
Consider the below object:
F = ma
F = 0 [∵ equal and opposite forces cancel out each other]
∴ 0 = ma
⇒ a = 0
∴ Vfinal = Vinitial
Hence, if the object was initially moving, it will continue to move with uniform velocity without acceleration.
Therefore, I agree with Soni's statement.
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