A 10 m long ladder is placed against a vertical wall and makes an angle of 60° with the ground. How high does the ladder reach on the wall?
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A 10 m long ladder is placed against a vertical wall and makes an angle of 60° with the ground. How high does the ladder reach on the wall?

G1 Physics · Accepted Answer

The ladder is the hypotenuse (10 m) and the height reached is opposite to 60°. So sin60° = h/10. Hence h=10×√3/2=5√3 m.