1. A building's 10th floor (34.5 m high) is blazing with fire. A fire truck arrived at the scene and the fire men shoots water from their hose. The water leaves the hose at the speed of 29 m/s, at an angle of 63° and is held at 0.90 m from the ground. Will the water reach the fire? If so, how far from the building should the hose be so the fire could be put out? 2. A 2 kg ball on a string is rotated about a circle of radius 10 m. The maximum tension allowed in the string is 50 N. What is the maximum speed of the ball?
1. A building's 10th floor (34.5 m high) is blazing with fire. A fire truck arrived at the scene and the fire men shoots water from their hose. The water leaves the hose at the speed of 29 m/s, at an angle of 63° and is held at 0.90 m from the ground. Will the water reach the fire? If so, how far from the building should the hose be so the fire could be put out? 2. A 2 kg ball on a string is rotated about a circle of radius 10 m. The maximum tension allowed in the string is 50 N. What is the maximum speed of the ball?
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Solve the following problems systematically. Show your complete solution.
1. A building's 10th floor (34.5 m high) is blazing with fire. A fire truck arrived at the scene and the fire
men shoots water from their hose. The water leaves the hose at the speed of 29 m/s, at an angle of
63° and is held at 0.90 m from the ground. Will the water reach the fire? If so, how far from the
building should the hose be so the fire could be put out?
2. A 2 kg ball on a string is rotated about a circle of radius 10 m. The maximum tension allowed in the
string is 50 N. What is the maximum speed of the ball?
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