A 25kg ladder, 4m long, rests on a rough floor and against a vertical wall. The ladder makes an angle of 35° with the horizontal as shown. It starts to slip when a man weighing 75kg has climbed halfway up. If f=0.2 at the wall, find the coefficient of friction at the floor. 2m A 75kg 25kg 35° 2m,
A 25kg ladder, 4m long, rests on a rough floor and against a vertical wall. The ladder makes an angle of 35° with the horizontal as shown. It starts to slip when a man weighing 75kg has climbed halfway up. If f=0.2 at the wall, find the coefficient of friction at the floor. 2m A 75kg 25kg 35° 2m,
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Transcribed Image Text:A 25kg ladder, 4m long, rests on a
rough floor and against a vertical
wall. The ladder makes an angle of
35° with the horizontal as shown. It
starts to slip when a man weighing
75kg has climbed halfway up. If
f=0.2 at the wall, find the coefficient
of friction at the floor.
2m
A
75kg
25kg
35⁰°
B
2m
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