1.

A man of mass 30 kg uses a rope to climb which bears only 450 N. What is the maximum acceleration with which he can climb safely?

Answer»

Mass m = 30 kg. ; Force F = 450 N Acceleration a = ? 

F = ma 

∴ a = \(\frac{F}{m}=\frac{450}{30}\) =15 m/sec2 

∴ The required acceleration =15 m/sec2



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