Question

x(0) = -4, v(0) = 3, and a(0) = -0.5 the car changes its direction at...

x(0) = -4, v(0) = 3, and a(0) = -0.5

the car changes its direction at the location x = 5.

a) if instead v(0) = 2.5, in which location does the car now change direction?

b) what v(0) will make the car change direction at x = 4?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Given a random variable X has the following pmf: X -1 0 1 P[X] 0.25 0.5...
Given a random variable X has the following pmf: X -1 0 1 P[X] 0.25 0.5 0.25 Define Y = X2 & W= Y+2. Which one of the following statements is not true? A) V[Y] = 0.25. B) E[XY] = 0. C) E[X3] = 0. D) E[X+2] = 2. E) E[Y+2] = 2.5. F) E[W+2] = 4.5. G) V[X+2] = 0.5. H) V[W+2] = 0.25. I) P[W=1] = 0.5 J) X and W are not independent.
Given a random variable X has the following pmf: X -1 0 1 P[X] 0.25 0.5...
Given a random variable X has the following pmf: X -1 0 1 P[X] 0.25 0.5 0.25 Define Y = X2 & W= Y+2. Which one of the following statements is not true? A) V[Y] = 0.25. B) E[XY] = 0. C) E[X3] = 0. D) E[X+2] = 2. E) E[Y+2] = 2.5. F) E[W+2] = 4.5. G) V[X+2] = 0.5. H) V[W+2] = 0.25. I) P[W=1] = 0.5 J) X and W are not independent.
Car A starts from rest and accelerates in the x-direction at 4 m/s^2 at the precise...
Car A starts from rest and accelerates in the x-direction at 4 m/s^2 at the precise moment that it is passed by Car B traveling in the same direction at a constant speed of 40 m/s. (Draw a free-body diagram).                       a) How long does it take Car A to catch Car B?                       b) How far has Car A traveled when it catches Car B?                       c) How fast is Car A traveling when it catches Car B?                      ...
4. (1 point) Consider the following pmf: x = -2 0 3 5 P(X = x)...
4. (1 point) Consider the following pmf: x = -2 0 3 5 P(X = x) 0.34 0.07 ? 0.21 What is the E[ X 1 + X ] 5. (1 point) Screws produced by IKEA will be defective with probability 0.01 independently of each other. What is the expected number of screws to be defective in any given pack? Hint: you should be able to recognize this distribution and use the result from the Exercises at the end of...
Suppose ?(?,?)=??f(x,y)=xy, ?=(−4,−4)P=(−4,−4) and ?=3?+2?v=3i+2j. A. Find the gradient of f. ∇?=∇f=  ?+i+  ?j Note: Your answers should...
Suppose ?(?,?)=??f(x,y)=xy, ?=(−4,−4)P=(−4,−4) and ?=3?+2?v=3i+2j. A. Find the gradient of f. ∇?=∇f=  ?+i+  ?j Note: Your answers should be expressions of x and y; e.g. "3x - 4y" B. Find the gradient of f at the point P. (∇?)(?)=(∇f)(P)=  ?+i+  ?j Note: Your answers should be numbers C. Find the directional derivative of f at P in the direction of ?v. ???=Duf= D. Find the maximum rate of change of f at P. E. Find the (unit) direction vector in which the maximum rate...
A uniform electric field of magnitude 260 V/m is directed in the positive x direction. A...
A uniform electric field of magnitude 260 V/m is directed in the positive x direction. A +12.0 µC charge moves from the origin to the point (x, y) = (20.0 cm, 50.0 cm). (a) What is the change in the potential energy of the charge field system? ______ J (b) Through what potential difference does the charge move? ______ V Full, detailed solutions please!
Given the set S = {(u,v): 0<= u<=4 and 0<= v<=3} and the transformation T(u, v)...
Given the set S = {(u,v): 0<= u<=4 and 0<= v<=3} and the transformation T(u, v) = (x(u, v), y(u, v)) where x(u, v) = 4u + 5v and y(u, v) = 2u -3v, graph the image R of S under the transformation T in the xy-plan and find the area of region R
Let u = (−3, 2, 1, 0), v = (4, 7, −3, 2), w = (5,...
Let u = (−3, 2, 1, 0), v = (4, 7, −3, 2), w = (5, −2, 8, 1). Find the vector x that satisfies 2u − ||v||v = 3(w − 2x).
Consider the function: f(x) = 0.5x if 0<x<1 f(x) = 0.5 if 1<x<2 f(x) =1.5-0.5x if...
Consider the function: f(x) = 0.5x if 0<x<1 f(x) = 0.5 if 1<x<2 f(x) =1.5-0.5x if 2<x<3 f(x) = 0 otherwise. a. Show that this is a PDF. b. Calculate P(x<2.5) and P(0.5<x<2). c. Find the expected value and the median of this distribution.
A car moves along a straight line with velocity, in feet/second, given by v(t)=35-5t for t≥0....
A car moves along a straight line with velocity, in feet/second, given by v(t)=35-5t for t≥0. (a) With forward being the direction of positive velocity, when is the car moving forward? Backward? Stopped? The car is moving forward for ≤t< . The car is moving backward for t> . The car is not moving at the instant t= . (b) Does the car ever return to its starting point? If so, when? If the car never returns to its starting...