Consider an object moving in the plane whose location at time t seconds is given by the parametric equations: x(t)=5cos(at) y(t)=3sin(t). Assume the distance units in the plane are meters. (a) The object is moving around an ellipse with equation: +2 +=1 where a= 5 and b= 3 (b) The location of the object at time t=1/3 seconds is (2.5 2.598 (c) The horizontal velocity of the object at time t is x ' (t)= —5nsin(t) m/s. (d) The horizontal velocity of the object at time t=1/3 seconds is (e) The vertical velocity of the object at time t is y' (t)= 3π cos(л) m/s. m/s. (f) The vertical velocity of the object at time t=1/3 seconds is 4.712 (g) The slope of the tangent line at time t=1/3 seconds is -0.347 m/s. (h) Recall, the speed of the object at time t is given by the equation: s(t)=√√ [x '(t)]² + [y ' (t)]² m/s. The speed of the object at time t=1/3 seconds is (i) The first time when the horizontal and vertical velocities are equal is time t= 0.828 (j) Let Q be the position of the object at the time you found in part (i). The slope of the tangent line to the ellipse at Q is This question builds on an earlier problem. The randomized numbers may have changed, but have your work for the previous problem available to help with this one. A 10-centimeter rod is attached at one end to a point A rotating counterclockwise on a wheel of radius 5 cm. The other end B is free to move back and forth along a horizontal bar that goes through the center of the wheel. At time t=0 the rod is situated as in the diagram at the left below. The wheel rotates counterclockwise at 1.5 rev/sec. At some point, the rod will be tangent to the circle as shown in the third picture. A B B A B at some instant, the piston will be tangent to the circle (a) Express the x and y coordinates of point A as functions of t: x= 5 cos(3nt) and y= 5 sin(3πt) (b) Write a formula for the slope of the tangent line to the circle at the point A at time t seconds: -cot (3πt) (c) Express the x-coordinate of the right end of the rod at point B as a function of t: 5 cos(3лt) + 10 sin (3πt) (d) Express the slope of the rod as a function of t: -cot (3πt) (c) Find the first time when the rod is tangent to the circle: seconds. (d) At the time in (c), what is the slope of the rod? (e) Find the second time when the rod is tangent to the circle: seconds. (f) At the time in (e), what is the slope of the rod?

Find the parametric equation for the line where the planes -4x+y+3x= -11 and -2x+y=3z = 7 intersect.

Write the corresponding rectangular equation for the curve represented by the parametric equation x=3t-3, y=5t+4 by eliminating the parameter. Select one: a. 5x-3y+19=0 b. 5x+3y-19=0 C. 5x-y+27=0 d. 5x-3y+27=0 e. 5x+y+27=0

Determine which of the following parametric equations match the graph. Ⓒ = 4 (t-sint)-3, y = 4(1-cost) - 2 x=2(t-sint) - 3, y = 2 (1-cost) - 2 x=4 (t-sin t) +3, y = 4 (1-cost) - 2 * = 4 (t-sin t) -3, y = 4 (1-cost) + 2 x=2(t-sint)-3, y-2 (1-cost) + 2 x = 2 (tsint) + 3, y=2 (1-cost) - 2 O LO 6 4 3 2 -18-17-16-15-14-13-12-11-10-8-8-7-6-5-4-3-2-11- -3- 44 -6+ → 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Write the parametric equations a = 4t – t, y = 2 – 3t in the given Cartesian form.

A second car also leaves at noon and drives in a southwesterly direction. At 2 pm, its location (777, 370); at 5 pm, its location is (648, 325). Write a set of parametric equations to describe its movement. Fill in the blanks. Give decimal values to three places. X = t + t +

A shot put being thrown is represented by the parametric equations: x = 22.98t y = -16t² + 19.3t+6 If a 6 foot man stands 25 feet away from thrower, will the shot put hit him? If not, by how much would the shot put miss the 6 foot man? Round to the nearest hundredths place. If not applicable, then write NA. feet