A 2.6 metre long rod leans against a wall,its foot 1 metre from the wall.When the foot is moved a little away from the , wall, its upper end slides the same length down.How much farther is the foot moved?
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A ladder leans against a wall, with its foot 2 metres away from the wall and the angle with the floor is 40^circ . How high is the top end of the ladder from the ground?

A ladder 5m long is leaning against a wall. The bottom of the ladder is pulled along the ground, away from the wall, at the rate of 2cm/s. How fast is its height on the decreasing when the foot of the ladder is 4m away from the wall.

A laader 10 m long rests against a vertical wall with the lower end on the horizontal ground. The lower end of the ladder is pulled along the ground away from the wall at the rate 3 cm//s. The height of the upper end while it is descending at the rate of 4 cm/s, is : a) 4 sqrt3 m b) 5 sqrt3 m c) 5 sqrt2 m d) 6 m

A stone falls down from the top of a wall in 1 s to the ground ( g=10 m/s^2 ) How much is the height of the wall?

A ladder leans against a wall. Its foot is 3 metres away from the wall and making an angle 35^circ with ground. How high is the other end of the ladder from the ground? (sin 35^circ=0.57, cos 35^circ=0.82, tan 35^circ=0.70)

A boy '1.2' metres tall stands 1 metre away from the foot of a lamp post. If the length of his shadow is '1.5' metres, what is the height of the lamp post?

A man 1.7 metres tall stands 10 metres away from the foot of a tree, and he sees the top of the tree at an angle of elevation 40^circ . How tall is the tree?