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Grade: 12th pass
        
The ladder shown in figure has negligible mass and rest on frictionless floor. The angle between the two legs of ladder is 600. The fat person of 80kg is sitting on ladder. Find the contact force exerted by the floor and the tension in crossbar.
one year ago

Answers : (2)

Eshan
askIITians Faculty
2095 Points
							The vertical normal force will just try to balance the weight of the man from above. Hence 2N=mg
\implies N=400
one year ago
Pratyush
13 Points
							
Contact force =N+N =2N
2N=80g.                           (g=9.8)
N=392
Torque equation for left side in earlier 
So we take angle as 30°
N(2)tan30°=T(1)
2N*1/√3=T
T=2N/√3
T= 450N
 
If u take g = 10 then answer will be 470.58
one year ago
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