A wall is inclined to the floor at an angle of `135^@`. A ladder of length `l` is resting on the wall. As the ladder slides down, its mid-point traces an arc of an ellipse. Then the area of the ellipse is

At the bottom edge of a smooth wall, an inclined plane is kept at an angle of 45^@ . A uniform ladder of length l and mass M rests on the inclined plane against the wall such that it is perpendicular to the incline. a. If the plane is also smooth, which way will the ladder slide? b. What is the minimum coefficient of friction necessary so that the ladder does not slip on the incline.

At the bottom edge of a smooth wall, an inclined plane is kept at an angle of 45^@ . A uniform ladder of length l and mass M rests on the inclined plane against the wall such that it is perpendicular to the incline. a. If the plane is also smooth, which way will the ladder slide? b. What is the minimum coefficient of friction necessary so that the ladder does not slip on the incline.

A ladder of length 14 m just reaches the top of a wall. If the ladder an angle of 60^(@) with the horizontal, then the height of the wall is ____.

A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 3 m/sec. How fast is he approaching the wall ?

A stick of length l rests againsts the floor and a wall of a room. If the stick begins to slide on the floor, then the locus of its middle point is

A ladder is inclined to a wall making an angle of 30 with it.A man is ascending the ladder at the rate of 3m/sec. How fast is he approaching the wall?

A ladder is resting with the wall at an angle of 30^circ . A man is ascending the ladder at the rate of 3 ft/sec. His rate of approaching the wall is

A ladder is resting with the wall at an angle of 30^circ . A man is ascending the ladder at the rate of 3 ft/sec. His rate of approaching the wall is

A stick of length I rests against the floor and a wall of a room. If the stick begins to slide on the floor, then the locus of its middle point is