A 360-m-wide river has a uniform flow speed of 1.5 m/s through a jungle and toward...

A 360-m-wide river has a uniform flow speed of 1.5 m/s through a jungle and toward the east. An explorer wishes to leave a small clearing on the south bank and cross the river in a powerboat that moves at a constant speed of 5.8 m/s with respect to the water. There is a clearing on the north bank 65 m upstream from a point directly opposite the clearing on the south bank. (a) At what angle, measured relative to the direction of flow of the river, must the boat be pointed in order to travel in a straight line and land in the clearing on the north bank? (b) How long will the boat take to cross the river and land in the clearing?

Expert Solution

genius_generous answered 2 years ago

A river has a steady speed of 0.650 m/s. A student swims upstream a distance of...

A river has a steady speed of 0.650 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. (a) If the student can swim at a speed of 1.15 m/s in still water, how long does the trip take? s (b) How much time is required in still water for the same length swim? s (c) Intuitively, why does the swim take longer when there is a current?

A river has a steady speed of 0.330 m/s. A student swims upstream a distance of...

A river has a steady speed of 0.330 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. (a) If the student can swim at a speed of 1.10 m/s in still water, how long does the trip take? __________ s (b) How much time is required in still water for the same length swim? __________ s (c) Intuitively, why does the swim take longer when there is a current?

A river has a steady speed of 0.370 m/s. A student swims upstream a distance of...

A river has a steady speed of 0.370 m/s. A student swims upstream a distance of 1.00 km and swims back to the starting point. (a) If the student can swim at a speed of 1.30 m/s in still water, how long does the trip take? s (b) How much time is required in still water for the same length swim? s (c) Intuitively, why does the swim take longer when there is a current?

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A ball is thrown toward a cliff of height h with a speed of 30 m/s...

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The water in a river flows uniformly at a constant speed of 2.93 m/s between parallel...

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A 1.5 kg ball is thrown vertically upward with an initial speed of 15 m/s. If...

A 1.5 kg ball is thrown vertically upward with an initial speed of 15 m/s. If the initial potential energy is taken as zero, find the ball’s kinetic, potential, and mechanical energies (a) at its initial position, (b) at 5 m above the initial position, and (c) at its maximum height.

An electron has a non-relativistic speed of v=1.5×10^5 m / s. Determine: A) Its de Broglie...

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A 5 m wide rectangular channel carries a flow of 20 m3/s. The slope of the...

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