College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Ree is using a bow and arrow to shoot at a falling target during one of their archery training lesson in preparation for an archery competition.
- Where should Ree aim? explain
- Should Ree aim slightly above the target, slightly below the target, or directly at it? Explain.
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- When a vehicle is traveling with a speed of v = 10 m / s, a stone is thrown over it with a speed of v = 40 m / s. Since the person standing on the ground sees that the stone moves vertically upwards, what is the angle Ɵ of the stone's shot angle with the car surface? g = 10 m / s2arrow_forward6. A river is 85 meters wide, and has a current speed of 5.0 m/s. A swimmer is capable of swimming at 8.0 m/sin a pool.a) If the swimmer pointed directly across the river, how far downstream would they end up aftercrossing the river? b) If the swimmer wished to traverse directly across the river, what angle should they direct theirswim?arrow_forwardQ4 : A passenger in the car ( A ) traveling west at a speed of ( 90 km/h ) observes a second car ( B ) traveling ( 30° ) northwest direction. car ( B ) appears to the passengers in ( A ) to be moving away from his car at ( 45° ) northeast as shown. Determine the true velocity of car ( B ). 45 A 30° VA= 90 km/harrow_forward
- 7(t) = x(t)î + y(t)ĵ x(t) = at + b, where: a = 1.00' Given: Position vector: m x- component: b = 1.00 m y – component: y(t) = ct² + d, where: c = 0.125 ". d = 1.00 m %3D What is the velocity at t= 2.00 s? O A. (0.500î - 1.00j) m/ O B. (1.001 + 0.50oj) m/s ° C. (1.00i - 0.50oj) m/s O D. (0.500î + 1.00j) m/sarrow_forward6. An archer needs to hit a bull's eye on a target at eye level 60.0 ft away. If the archer fires the arrow from eye level with a speed of 47.0 ft/s at an angle of 25.0° above the horizonal, will the arrow hit the target? (Show work!!)arrow_forwardQ1. An archer aims at the bullseye of a target 50.0 m away. The arrow is at the same height as the bullseye. If the archer angles the arrow upwards at 12°, what must the arrow's initial speed be in order to hit the bullseye?arrow_forward
- Problem 8 It is raining outside. From the perspective of an observer standing on the ground, the raindrops are falling vertically downward at a speed of 12 m/s. You are driving down the highway at a speed of 65 mph (29 m/s). What angle, relative to the horizontal will you see the raindrops falling?arrow_forwardMake a prediction regarding what launch angle will produce the maximum horizontal range for a projectile launched from level ground and landing back on level ground. Provide reasoning to support your hypothesis.arrow_forwardA projectile is launched with a velocity vO=3m/s/ y Vo h R Determine the optimal angle, in degree, to maximize the range Rarrow_forward
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