physics

posted by .

A particle experiences a constant acceleration that is south at 2.50 meters per second squared. At t=0, its velocity is 40.0 meters per second east. What is its velocity at t=8.00 seconds?

  • physics -

    The acceleration is due south, so the east-west component (40 m/s) is not altered.
    For the north-south component, at t=0,
    initial velocity = 0 m/s
    after 8 seconds,
    velocity v=0+(-2.5)8 = -20 m/s (<0 for south)
    Velocity = (40,-20) m/s
    Magnitude = √(40²+20²)
    =44.72 m/s
    direction:
    atan(-20/40)=-26.57°, or
    26.57° south of east.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. physics i suck

    an antelope moving with constant acceleration covers the distance between two points that are 80 meters apart in 7 seconds. Its velocity as it passes the second point is 15 meters per second. What is the antelope's velocity at the …
  2. Science

    Which of the following is an accurate statement of an acceleration value, translated from symbols into words?
  3. algebra

    The formula below can be used to find the distance (d) traveled by an object, where v represents the initial velocity of the object, t represents the time, in seconds, and d represents the acceleration, in meters per second squared. …
  4. algebra

    The formula below can be used to find the distances (d) traveled by an object, where v represents the initial velocity of the object, t represents the time, in seconds, and a represents the acceleration, in meters per second squared. …
  5. chemistry

    If a skateboarder is going 40 meters per second after 3 seconds, what is the initial velocity of the skateboarder with an acceleration of 2.1 meters per second squared?
  6. Physics

    A particle moved along the x axis with a constant acceleration of -85.0 meters per second squared. The initial position of the particle was at the origin and its initial velocity was +325 meters per second. Find the position of the …
  7. Physics

    a missile is launched off a jet fighter travelling 300 meters per second. it accelerated with a constant acceleration of 100 meters per second. when it has traveled 5000 meters what will its velocity be?
  8. physics

    A basketball rolls to the right with a velocity of 4 meters per second. It is pushed up and accelerated up for 2 seconds with an acceleration of 4 meters per second . Then for 1 second it is pushed and accelerated down with an acceleration …
  9. Precalculus

    For this problem, we will use the formula for position of an object. y=1/2at^2+vot+ho, where t is time in seconds, a is acceleration in meters per second squared (in this case gravity so -9.8 m/s2), v0 is the initial velocity in meters …
  10. Calc

    A baseball is thrown upwards from a height of 2 meters with an initial velocity of 10 meters per second. Use the fact that -9.8 meters per second squared is constant acceleration due to gravity to answer the following: The maximum …

More Similar Questions