Concept explainers
An object moves in force field
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Calculus Volume 3
Additional Math Textbook Solutions
A First Course in Probability (10th Edition)
A Problem Solving Approach To Mathematics For Elementary School Teachers (13th Edition)
Elementary Statistics: Picturing the World (7th Edition)
Elementary Statistics (13th Edition)
Calculus: Early Transcendentals (2nd Edition)
Calculus: Early Transcendentals (2nd Edition)
- A particle is acted upon by constant forces 4i+j-3k and 3i+j-k and is displaced from the point (1,2,3)to the point (5,4,1). Find the total work spent by the forces ?arrow_forwardBrazilian soccer star Marta has a penalty kick in the quarter-final match. She kicks the soccer ball from ground level with the (x, y)-coordinates (76, 21) on the soccer field shown in the figure and with initial velocity vo = 8i - 4j+23k ft/s. Assume an acceleration of 32 ft/s² due to gravity and that the goal net has a height of 8 ft and a total width of 24 ft. 105 ft 1 105 ft r₁ = rj = rk = 165 ft Determine the position function that gives the position of the ball t seconds after it is hit. (Use symbolic notation and fractions where needed.) r(t) = ri(t)i + rj(t)j + rk(t)k Incorrect 81+76 -41+21 ↓ 23r+1672² 165 ft 12 12arrow_forwardFind the velocity vector v(t), given the acceleration vector a(t) = (3e¹, 7, 10t +9) and the initial velocity v(0) = (8,-5,3). (Use symbolic notation and fractions where needed. Give your answer in the vector form.) v(t) = 2(e' - 2)i + (3t-2)j + (3r² +9r+2)k Incorrectarrow_forward
- Brazilian soccer star Marta has a penalty kick in the quarter-final match. She kicks the soccer ball from ground level with the (x, y)-coordinates (76, 21) on the soccer field shown in the figure and with initial velocity vo = 8i - 4j+23k ft/s. Assume an acceleration of 32 ft/s² due to gravity and that the goal net has a height of 8 ft and a total width of 24 ft. 105 ft 105 ft ri = rj = 165 ft rk = e 165 ft Determine the position function that gives the position of the ball t seconds after it is hit. (Use symbolic notation and fractions where needed.) r(t) = r(t)i + r(t)j +rk(t)k 12 12 Xarrow_forwardSuppose that over a certain region of space the electrical potential V is given by the following equation. V(х, у, 2) %3 4x2 - Зху + хуz (a) Find the rate of change of the potential at P(6, 6, 5) in the direction of the vector v = i +j- k. (b) In which direction does V change most rapidly at P? (c) What is the maximum rate of change at P?arrow_forwardSuppose that over a certain region of space the electrical potential V is given by the following equation. V(x, y, z) = 2x² 5ху + хуz (a) Find the rate of change of the potential at P(5, 4, 7) in the direction of the vector v = i +j - k. (b) In which direction does change most rapidly at P? (c) What is the maximum rate of change at P? Need Help? Watch It Additional Materials lеВookarrow_forward
- Find the directional derivative of f (x, y, z) = 2z²x + y° at the point (2, 1, 2) in the direction of the vector 1 2 i+ (Use symbolic notation and fractions where needed.) directional derivative:arrow_forwardFind r’(t), r(t), and r’(t) for the given value of tå. r' (t) r(to) r'(to) = = = = r(t) = 3 cos(t)i + 3 sin(t)j, to T 2 Sketch the curve represented by the vector-valued function and sketch the vectors r(t) and r'(t). = r(t) starts at (x, y) = (0, 0) and ends at (x, y) = r'(to) starts at the terminal point of r(t) at (x, y) = and ends at (x, y) =arrow_forwardA velocity vector of v = 3t2i − 6t3 j − 4K ft/s is governing the movement of an object in the 3D space. If the object starts at (-1, 4, 5) at t = 0, determine the acceleration and position at t = 4sarrow_forward
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage