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How long must a wire be to reach from the top of a 13 meter telephone pole to a point on the ground 9 meter from the foot of the pole?
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How long must a wire be to reach from the top of a 13 meter telephone pole to a point on the ground 9 meters from the foot of the pole?
15.80 meters
How long must a wire be to reach the top of a 13 meter telephone pole to a point on the ground 9 meters from the foot of the pole?
Use Pythagorean formula to solve: a2 + b2 = c2 , where a & b are the legs of the right triangle & c is the hypotenuse.so, a = 13m (height of the telephone pole) & b=9 m distance from the bottom of the pole.(13)2 + (9)2 = c2169 + 81 = c2c2 = 250c = SQRT(250)c = 15.81 m
What would be the change for a 10 gram object dropped from a 20 meter building if it takes 2 seconds to reach the ground?
There is no reason for the object to change.
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