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A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...

A ladder 10 m long rests against a vertical wall wall. If the bottom of the ladder slides away from the wall at a speed of 2 m/s, how fast is the angle between the top of the ladder and the wall changing when the angle is 45 degrees? The book tells me the answer is 2/ squareroot 5. This is...