Problem 1: The baseball player A hits the baseball at VA = 40 ft/s and 0A = 60° from the horizontal. When the ball is directly overhead of player B he begins to run under it. Determine the constant speed at which B must run and the distance d in order to make the catch at the same elevation at which the ball was hit. VA = 40 ft/s 15 ft B d C
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- = 3.98 m to the north, A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d₁ d₂ = 2.06 m northeast, and d3 = 1.16 m at 30.0° west of south (see the figure below). Starting at the same initial point, an expert golfer could make the hole in what single displacement? magnitude direction WE S m o north of east d₂ d₁ 30.0° dz22. Three displacement vectors of a cro- quet ball are shown in Figure P3.22, where A 40.0 units, and |C (a) the resultant in unit-vector nota- 20.0 units, B 30.0 units. Find A. 45.0° tion and (b) the magnitude and direc- tion of the resultant displacement. 45.0 23. (a) Taking A = (6.00 i - 8.00 j) units, QIC B (-8.00 i + 3.00 j) units, and C = (26.0 i + 19.0 j) units, determine a Figure P3.2 and b such that a A + bB + C = 0. (b) A student has learned that a single equation cannot be solved to determine values for more than one unknown in it. How would you explain to him that both a and b can be determined from the single equation used in part (a):A parent at a Little League game returns a foul ball by throwing it back onto the field. When the parent throws the ball back, she is standing and ends up releasing the ball from a point that is 2.50m above the ground. Your best guess is that she threw the ball upward at an angle of 60o with respect to the ground and it landed 13m away from her. What was the height of the ball's apex (as measured from the ground)?
- Qs The ball was thrown with a speed (1, = 35 m/sec) and directed at an angle (6= 30°)with the horizontal. Determine the distance R where the ball hits the slope at B.6. A penguin is fired from a cannon at an initial height of 1.00 m above the ground. His initial velocity is 7.20 m/s at 50° above the horizontal. The penguin later lands in a net positioned 1.00 m above the ground. a) Find the maxim height of the penguin above the ground during the flight. b) How far horizontally, Ax, is the net from the initial position?A plane flies with the Jet Stream (tailwind) from Chicago to Rome in 9.1 hours, a flight distance of 7740 km. It returns, flying against the Jet Stream (headwind), in 10.8 hours. Calculate the average speed of the plane and the average speed of the wind. Must list assumptions, and draw 1D vector diagram!!! wr M
- M E C a 1ll ZAIN IQ Q1) A bird flies 110 m east from an apple tree, then 180 m northwest making an angle 47 degree north of west. Using graphical addition of vectors, find the bird's net .displacement د إضافة ملف Q2) A ball is thrown straight up into the air with an initial velocity of 49 m/s. (1) How high the ball does it go? (2) how long does the ball take to fall to the ground? Assume air resistance .is negligible إضافة ملف )( هذا السؤال مطلوب صفحة 1 من 1 إرسال عدم إرسال كلمات المرور عبر نماذج Go ogle مطلقا.A baseball batter hits a long fly ball, giving it an initial velocity 45.0° above the horizontal. The ball risesto a maximum height of 14.8 m. An outfielder on the opposing team starts running at 7.60 m/s the instantthe ball is hit. Calculate the farthest the fielder can be from where the ball will land so that it is possiblefor him to catch the ball, i.e. distance between fielder’s original position and lading of the ballA baseball batter hits a long fly ball, giving it an initial velocity 45.0° above the horizontal. The ball risesto a maximum height of 14.8 m. An outfielder on the opposing team starts running at 7.60 m/s the instantthe ball is hit. Calculate the farthest the fielder can be from where the ball will land so that it is possiblefor him to catch the ball, i.e. distance between fielder’s original position and lading of the ball. [HINT: Assume that the outfielder catches the ball at the same height at which it was hit, and that hebegins running at the same time that it was hit.]
- A fireworks show is choreographed to have two shells cross paths at a height of 163 feet and explode at an apex of 207 feet under normal weather conditions. The shells have a launch angle = 64° above the horizontal. If a strong wind induces a constant rightward acceleration of 16 ft/sec² for the fireworks shells, determine the horizontal shift Ax of the crossing point of the shells. 44' 163' AD VO A 0 Answer: Ax= i ft VO 0 BA fireworks show is choreographed to have two shells cross paths at a height of 142 feet and explode at an apex of 177 feet under normal weather conditions. The shells have a launch angle 0 = 70° above the horizontal. If a strong wind induces a constant rightward acceleration of 16 ft/sec² for the fireworks shells, determine the horizontal shift Ax of the crossing point of the shells. 35' 142' Answer: Ax VO A/0 d ft VO e BBlack vultures excel at gliding flight; they can move long distances through the air without flapping their wings while undergoing only a modest drop in height. A vulture in a typical glide in still air moves along a path tipped 3.5° below the horizontal. If the vulture moves a horizontal distance of 100m, how much height does it lose?