Ask questions and get helpful responses.
Ask a New Question
  1. Questions

math

A particle moves in the xy-plane so that its position for t ≥ 0 is given by the parametric equations x = ln (t + 1) and y = k(t^2) , where k is a positive constant. The line tangent to the particle’s path at the point where t = 3 has slope 8. What is the value of k ?

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
Amy

  1. dy/dx = dy/dt / dx/dt = 2kt(t+1)
    So, at t=3, dy/dx = 24k = 8
    so, k = 1/3

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    oobleck

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A particle moves in the xy plane with constant acceleration. At time zero, the particle is at x = 6.0 m, y = 3.0 m, and has velocity v = 4.0 m/s + -1.0 m/s . The acceleration is given by the vector a = 4.0 m/s2 + 0 m/s2 . (a) Find

  2. calculus

    5. A particle moves along the y – axis with velocity given by v(t)=tsine(t^2) for t>=0 . a. In which direction (up or down) is the particle moving at time t = 1.5? Why? b. Find the acceleration of the particle at time t= 1.5. Is

  3. HS Calculus

    Having trouble with this questions. Please help. A particle moves on the x-axis so that its position at any time t (is greater than or equal to) 0 is given by x(t) = 2te^-t a) Find the acceleration of the particle at t=0 b)find

  4. Calculus (Answer Check)

    A particle moves along the x-axis so that its velocity at time t, 0(less than or equal)t(greater or equal to)5 is given by v(t)=3(t-1)(t-3). at time t=2 the position of the particle is x(2)=0. 1. find the minimum acceleration of

  1. Physics

    A particle moves in the xy plane with a constant acceleration given by a = -4.0j m/s^2. At t = 0, its position and velocity are 10i m and (-2.0i +8.0j) m/s, respectively. What is the distance from the origin to the particle at t =

  2. AP CALC. AB

    A particle moves along a line so that at time t, where 0

  3. Calc

    A particle moves along the x-axis in such a way that it's position in time t for t is greator or equal to 0 is given by x= 1/3t^3 - 3t^2 +8 A) show that at time t= 0 the particle is moving to the right. B) find all values of t for

  4. Calculus

    1. A particle moves along the x-axis in such a way that it's position in time t for t is greater or equal to 0 is given by x= 1/3t^3 - 3t^2 +8t A. Find the position of the particle at time t = 3. B. Show that at time t = 0, the

  1. AP CALC. AB

    1.The position of a particle moving on the line y = 2 is given by x(t)= 2t^3-13t^2+22t-5 where t is time in seconds. When is the particle at rest? a. t =0.268, 2.500, and 3.732 b. t = 0, 1.153, and 3.180 c. t = 1.153, 2.167 and

  2. Physics

    A particle moves along the x axis. It is initially at the position 0.350 m, moving with velocity 0.110 m/s and acceleration -0.380 m/s2. Suppose it moves with constant acceleration for 3.50 s. (a) Find the position of the particle

  3. Calculus

    A particle moves along a line so that at any time t its position is given by x(t)=2(pi)t+cos(2(pi)t). Determine the particle's maximum velocity.

  4. physics

    A force acting on a particle moving in the xy plane is given by Fx = (2yi +x^2j)N, where x and y are in meters. The particle moves from the origin to a final position having coordinates x=5.00m and y=5.00m, as in Fig. Calculate

Still need help? You can ask a new question.