A kite 160 feet above the ground moves in a direction parallel to the ground at the rate of 5 feet per second. How fast is the string unwinding when the length of string already let out is 200 feet?
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A kite 160 feet above the ground moves in a direction parallel to the ground at the rate of 5 feet per second. How fast is the string unwinding when the length of string already let out is 200 feet?
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- A kite 160 above the ground moves in a direction parallel to the ground at the rate of 5feet per second. How fast is the string unwinding when the length of string already let out is 200ft12. A girl is flying a kite, which is at a height of 120 feet. The wind is carrying the kite horizontally away from the girl at a speed of 10 ft/s. How fast must the kite string be let out when the string is 150 feet long? Round off to the nearest whole number.Suppose that you throw a ball straight up at 10 m/s and release it at 2 m above the ground. (a) What maximum height above the ground does the ball reach? (b) How long after you release it does the ball hits the ground?
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- Calculate the work done by an electric motor in lifting an elevator weighing 4 kN through five floors having a distance of 3 m between each floor. Calculate the power required for the motor to go from the first to the fifth floor in 5 s.A plastic cup, 15.0 cm in height, is filled to the rim with water and is resting on a table. A small hole is punctured in the cup at a height 9.00 cm above the bottom of the cup and is allowing water to spew out. What is the speed of the water when it strikes the table?A volleyball player throws the ball with an initial velocity that makes an angle ?= 35º with the horizontal. Determine: The magnitude of minimum initial velocity with which the ball must be thrown in order to pass the net of height h. More data: h= 2.40 m Y= 2.15 m L= 12 m
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