A source of light is hung h mts., directly above a straight horizontal path on which a boy 'a mts., in height is walking. If a boy walks at a rate of b mts/sec. from the light then the rate at which his shadow increases

A point source of light is hung 30 feet directly above a straight horizontal path on which a man of 6 feet in height is walking.How fast is the man's shadow lengthening and how fast the tip of shadow is moving when he is walking away from the light at the rate of 100 ft/min.

A person of height 180 cm starts from a lamp post height 450 cm and walks at the constant rate of 4 km per hour. Find the rate at which his shadow increases.

A person of height 2mt starts from a lamp post of height 5 mt and walks away at the constant rate of 6 km per hour. The rate at which his shadow inceases is

A man of 2 m height walks at a uniform speed of 6km/h away from a lamp post of 6m height. The rate at which the length of his shadow increases is

A man 2 m high walks at a uniform speed of 5km/hr away from a lamp post 6 m high. Find the rate at which the length of his shadow increases?

A point source of light along a straight road is at a height of 'a' metres. A boy 'b' metres in height is walking along the road. How fast is his shadow increasing if he is walking away from the light at the rate of 'c' metres per minute ?

A point source of light along a straight road is at a height of 'a' metres. A boy 'b' metres in height is walking along the road. How fast is his shadow increasing if he is walking away from the light at the rate of 'c' metres per minute ?

A man of height 1.7 m walks at a uniform speed of 6.6 m/min from a lamp post which is 5m high.Find the rate at which the length of his shadow increases.

A man of height 1.7 m walks at a uniform speed of 6.6 m/min from a lamp post which is 5m high.Find the rate at which the length of his shadow increases.