College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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- Two PHY11X classmates are standing on top of the Carlton Centre. One classmate is standing at the edge of a building and throws one ball straight up while the other classmate throws the other ball straight down at the same initial speed. Neglecting air resistance, the ball to hit the ground below the building with the greater speed will be A. the one thrown downward. B. impossible to determine with given information. C. neither -- they will both hit with the same speed. D. the one thrown upward.arrow_forwardab 3. Three projectiles (A, B, and C) are launched with different initial speeds so that they reach the same maximum height, as shown in the figure. List the projectiles in order of increasing initial speed (smallest v; written in the first blank). у thenarrow_forwardA golf ball is struck at an initial speed of 8.0 m/s 35 degrees above the horizontal. What is the speed of the ball when it returns to the same horizontal level? a) 4.0 m/s b) 8.0 m/s c) 9.8 m/s d) 16 m/sarrow_forward
- 85. A plane travels N30°W at 450 mph and encounters a wind blowing due west at 30 mph. (See Example 9) a. Express the velocity of the plane v, relative to the air in terms of i and j. b. Express the velocity of the wind vw in terms of i and j. c. Express the true velocity of the plane v, in terms of i and j and find the true speed of the plane.arrow_forward1. A grasshopper leaps into the air from the edge of a vertical cliff, as shown in figure below. Find (a) the initial speed of the grasshopper and (b) the height of the cliff. sin50.0° =0.76, cos50.0° =0.64 6.74 cm 50.0⁰ Not to scale -1.06 marrow_forwardFind the components of v V tot, x Vtot, y = = y A tot V tot along the x and y axes in the figure below, where 0 = 23.0° and v₁ = 5.08 m/s. tot 23.0% 26.5° Vtot = VA + VB VB Xarrow_forward
- Y 0 H D A soccer player kicks the ball, which moves as shown in the figure. You are given this information: the angle e and the maximum height H. Calculate the initial speed vo and the horizontal distance D. DATA 0 = angle = 25 degrees; H = 4.4 m; {initial speed} (in m/s) X A: 4.61 OB: 5.76 OC: 7.20 OD: 9.01 OE: 11.26 OF: 14.07 OG: 17.59 OH: 21.99 {horizontal distance) (in m) OA: 33.40 B: 37.74 OC: 42.65 OD: 48.19 OE: 54.46 OF: 61.54 OG: 69.54 OH: 78.58arrow_forwardSame object is first released from h and strikes the ground at the distance d, if it is released now form 2h it will strike the ground at: A. d B. √2 d C. 2d D. 4darrow_forward14arrow_forward
- 1.) A projectile is fired from the top of a cliff 100m high with a velocity of 450 m/s directed at 45 degrees to the horizontal. Based from this problem, wow high the projectile will rise? a. none b. 5,604.442m c. 4,840.246m d. 6,004.008m e. 5,160.550m 2.) Three forces, F1=2Ni+3Nj, F2=-10Nj and F3=3Ni+1Nj-5Nk, act on a particle. Find the net force on the particle. a. 5Ni−6Nj−5Nk b. 5Ni+6Nj+5Nk c. 5Ni+6Nj−5Nk d. 5Ni−6Nj+5Nkarrow_forward3. A baseball player throws a 145g ball toward home-plate from the out-field. The throw was made at 30.0m/s, 30.0° above horizontal [South]. If the baseball player releases the ball 2.45m above the ground; a. Determine the velocity (speed and direction) at the moment the ball strikes the 'turf (ground). b. Determine the time at which the ball possessed a minimal amount of kinetic c. Determine minimum level of kinetic energy for the ball throughout its flight. | energy.arrow_forward7) A ball is thrown in the air at an angle of 40°. If the maximum height it reaches is 10 m, what must be its initial speed? a) 17.46 m/s b) 21.78 m/s c) 304.92 m/s d) 474.37 m/sarrow_forward
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