2. A person decides to swim across a river 84 m wide that has a current moving with a velocity of 0.40 m/s [E]. The person swims at 0.70 m/s N] relative to the water. K/U TI A (a) What is the velocity of the person with respect to Earth? (b) How long will it take to cross? (c) How far downstream will the person land?
2. A person decides to swim across a river 84 m wide that has a current moving with a velocity of 0.40 m/s [E]. The person swims at 0.70 m/s N] relative to the water. K/U TI A (a) What is the velocity of the person with respect to Earth? (b) How long will it take to cross? (c) How far downstream will the person land?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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ミ,、 以, 四9-月
三 山 正 三 .田.
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1.A motorboat was moving [E 20° S] at 50.0 km/h. The operator then turned the boat
E 20° N] and decreased the speed to 30.0 km/h over 5.0 min. Determine the average
acceleration of the boat.
2. A person decides to swim across a river 84 m wide that has a current moving with a
velocity of 0.40 m/s [E]. The person swims at 0.70 m/s N] relative to the water. K/U
T/I A
(a) What is the velocity of the person with respect to Earth?
(b) How long will it take to cross?
(c) How far downstream will the person land?
(d) In what direction should she swim if she lands at a point directly north of her
starting position?
I.
3. A basketball player is standing 9.5 m from the basket, which is at a height of 3.1 m.
She throws the ball from an initial height of 2.0 m at an angle of 35° above the
horizontal. The ball goes straight through the basket. Determine the initial speed of
the ball.
4.The air velocity of a small plane is 230 km/h [N 35° E] when the wind is blowing at
75 km/h [W 25° S]. Determine the velocity of the plane relative to the
ground.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1f26ab8a-3d55-4fad-9b02-449628c99f88%2F112bff8d-e47e-4f08-a7e4-d773e2c41a03%2Fmbcz1ek_processed.jpeg&w=3840&q=75)
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ミ,、 以, 四9-月
三 山 正 三 .田.
AaBbCcDd AaBb AaBbCi AaBbC.
EA
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1.A motorboat was moving [E 20° S] at 50.0 km/h. The operator then turned the boat
E 20° N] and decreased the speed to 30.0 km/h over 5.0 min. Determine the average
acceleration of the boat.
2. A person decides to swim across a river 84 m wide that has a current moving with a
velocity of 0.40 m/s [E]. The person swims at 0.70 m/s N] relative to the water. K/U
T/I A
(a) What is the velocity of the person with respect to Earth?
(b) How long will it take to cross?
(c) How far downstream will the person land?
(d) In what direction should she swim if she lands at a point directly north of her
starting position?
I.
3. A basketball player is standing 9.5 m from the basket, which is at a height of 3.1 m.
She throws the ball from an initial height of 2.0 m at an angle of 35° above the
horizontal. The ball goes straight through the basket. Determine the initial speed of
the ball.
4.The air velocity of a small plane is 230 km/h [N 35° E] when the wind is blowing at
75 km/h [W 25° S]. Determine the velocity of the plane relative to the
ground.
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