A kite is moving horizontally at the height of 151.5 meters. If the speed of kite is 10 m/sec, how fast is the string being let out; when the kite is 250m away from the boy who is flying the kiet? The height of the boy is 1.5 m.

A kite is moving horizontally at a height of 151.5 m . If the speed of the kite is 10 m/s , how fast is the string being let out, when the kite is 250 m away from the boy who is flying the kite? The height of the boy is 1.5 m. (A) 8 m/s (B) 12 m/s (C) 16 m/s (D) 19 m/s

A kite is moving horizontally at a height of 151.5 m . If the speed of the kite is 10 m/s , how fast is the string being let out, when the kite is 250 m away from the boy who is flying the kite? The height of the boy is 1.5 m. (A) 8 m/s (B) 12 m/s (C) 16 m/s (D) 19 m/s

A kite is 120m high and 130 m of string is out. If the kite is moving away horizontally at the rate of 52 m/sec, find the rate at which the string is being paid out.

A kite is attached to a string. Find the length of the string , when the height of the kite is 60 m and the string makes an angle 30^(@) with the ground .

A kit is 120m high and 130 m of string is out. If the kite is moving away horizontally at the rate of 52 m/sec, find the rate at which the string is being paid out.

A kite is 300 m high and there are 500 m of cord out. If the wind moves the kite horizontally at the rate of 5(km)/(hr) directly away from the person who is flying it, find the rate at which the cord is being paid?

An observer 1.5 m tall is 28.5 m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 45o .What is the height of the chimney?

An observer 1.5 m tall is 28.5 m away from a chimney. The angle of elevation of the top of the chimney from her eyes is 45^@ .What is the height of the chimney?

A kite is flying at a height of 75 metres from the ground level, attached to a string inclined at 60^@ to the horizontal. Find the length of the string to the nearest metre.

A boy of height 1m stands in front of a convex mirror. His distance from the mirror is equal to its focal length. The height of his image is