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CBSE Class 9 Answered

SIR/MADAM,
Asked by bhanu24 | 14 Aug, 2009, 08:57: PM
answered-by-expert Expert Answer

Consider the lift going downward at constant speed, and of course it's direction is not changing, implies a constant velocity. Constant velocity means zero acceleration.

Now F = ma, where F is the net/unbalanced force. Since a =0, F = 0. So this means that unbalanced force is zero.

So all the forces acting on lift are balanced.

Regards,

Team,

TopperLearning.

Answered by | 15 Aug, 2009, 10:15: AM

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