uniten

3. At t = 0 , a particle leaves the origin with a velocity of 9.0 m/s in the positive y direction and moves in the xy plane with constant accelaration of ( 2.0i - 4.0j ) m/s2 . At the instant the x coordinate of the particle is 15 m , what is the speed of the particle ?

  1. 👍 1
  2. 👎 0
  3. 👁 2,715
  1. Vf=Vi+at
    Vf=9j+(2i-4j)t

    displacement= origposition+at
    now, in the i direction
    15=O+2t or t=7.5 when x position is 15

    put that into the first equation, solve for Vf.

    speed= sqrt (xcomponent^2+ycomponent^2)

    you get the x component, y component in the Vf equation

  2. dwdwwqddwq

    1. 👍 0
    2. 👎 5

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    particle A moves along the line y = 30m with a constant velocity of magnitude 3.5 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with 0 initial speed and constant

    asked by James on September 30, 2012
  2. physics

    the motion of a particle along a straight line is described by the function x=(2t-3)^2 where x is in metres and t is in seconds. A)find the position ,veocity and acceleration at t=2 sec. B) find the velocity of the particle at

    asked by j on June 26, 2012
  3. physic

    two particles moving along x-axis in the same direction with uniform velocity is 8 metre per second and 4 metre per second initially the first particle is 21 m to the left of the origin and the second one is 7 m to the right of

    asked by ruchiket on August 3, 2017
  4. Engineering Kinematic

    The particle travels along the path defined by the parabola y=0.5(x^2). If the component of velocity along the x-axis is v=5t [m/s], determine the particle's distance from the origin and the magnitude of its acceleration when

    asked by Claire on October 16, 2010
  1. Physics

    At t=0, a particle leaves the origin with a velocity 6m/s in the positive x direction and moves in the x-y plane with a constant acceleration (-2i-4j)m/s2 How far the particle from the origin at t=1 ?

    asked by Maryam on October 31, 2013
  2. science

    the velocity of a particle is given by v=[16t^2i+4t^3j +(5t+2)k]m/s, where t is in seconds. If the particle is at the origin when t=0, determine the magnitude of the particle's acceleration when t=2s. What is the x,y,z coordinate

    asked by sarah on November 3, 2008
  3. differential equation or physics

    A particle moves on the x-axis with an acceleration, a=(6t-4)m/s2. Find the position and velocity of the particle at t=3 , if the particle is at origin and has a velocity of 10 m/s ms when t=0.

    asked by aamiraa on March 10, 2011
  4. Physics

    A particle leaves the origin with a velocity of 7.2 m/s in the positive y direction and moves in the xy plane with a constant acceleration of (3.0 – 2.0 ˆi ˆj ) m/s2. At the instant the particle moves back across the x axis (y

    asked by Lee on September 29, 2008
  1. Physics

    At t=0 a particle leaves the origin with a velocity of 5.0 m/s in the positive y direction, its acceleration is given by a=3i-2j m/s^2 At the instant the particle reaches its maximum y coordinate, how far is it from the origin?

    asked by alyssa on October 17, 2015
  2. Physics

    A particle leaves the origin with an initial velocity v=(3.68i) m/s and a constant acceleration a=(-3.33i-3.72j)m/s^2. When the particle reaches its maximum x coordinate, what are (a) its velocity, (b) its position vector?

    asked by Stacey on March 14, 2014
  3. physics

    A particle (mass = 5.0 g, charge = 40 mC) moves in a region of space where the electric field is uniform and is given by Ex = -5.5 N/C, Ey = Ez = 0. If the position and velocity of the particle at t = 0 are given by x = y = z = 0

    asked by Sam on February 21, 2017
  4. physics

    A particle starts from the origin at t = 0 with an initial velocity of 5.5 m/s along the positive x axis.If the acceleration is (-2.8i + 4.1jm/s^2, determine (a)the velocity and (b)position of the particle at the moment it reaches

    asked by julia on October 16, 2011

You can view more similar questions or ask a new question.