Asked by Steven

A uniform ladder of mass 30kg and length 5m rest against a smooth vertical wall with its lower end on a rough ground. The coefficient of friction is 0.4.the ladder is inclined at 60 degrees to the horizontal. Find how far a man of mass 80kg can climb without the ladder slipping?

Answers

Answered by REINA SHARON
N=30kg + 80kg = 110kg----1
f=0.4*N-----2
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