Physics

posted by .

An arrow is launched vertically upward from a crossbow at 98.2 m/s. Ignoring air friction, what is its instantaneous acceleration 4.20 s into the flight?

  • Physics -

    The acceleration will be -g, which is -9.8 m/s^2, at all times. It is directed downward.

    It makes no difference what the initial speed or the elapsed time is. Those numbers are put there to confuse you.

  • Physics -

    Thank you!

  • Physics -

    23.3

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    An arrow is launched vertically upward from a crossbow at 98.2 m/s. Ignoring air friction, what is its instantaneous speed at the end of 10.0 s of flight?
  2. physics

    An arrow is short vertically upward with an initial speed of 25m/s. When it's exactly halfway to the top of its flight, a second arrow is launched vertically upward from the same spot. The second arrow reaches the first arrow just …
  3. physics

    Marie shoots an arrow vertically upward at a sandhill crane. If the arrow travels to a maximum height of 99.5 meters, calculate how fast it was shot. And, for how much time was Marie's arrow in the air?
  4. physics

    an arrow is shot from a crossbow. How long will it take the arrow to accelerate from rest to a speed of 152 m/s if the crossbow can accelerate the arrow at a rate of 1.35 x 10^4
  5. Physics

    A rocket engine can accelerate a rocket launched from rest vertically up with an acceleration of 18.4 m/s2. However, after 49.6 seconds of flight the engine fails. Neglect air resistance and assume g = 9.80 m/s2 throughout the flight.
  6. physics

    an arrow is shot vertically upward 2 seconds later it is at a height of 42m (this may not be necesarily its highest point)with what velocity was the arrow shot, how long is the arrow in flight altogether
  7. physics

    an arrow is shot vertically upward after 2s it is at a height of 36m although this is not necessarily the highest point with what velocity was the arrow shot what is the maximum height reached by the arrow how long is the arrow in …
  8. physics

    an arrow is shot vertically upward 2 seconds later it is at a height of 42m with what velocity was the arrow shot, how long is the arrow in flight altogether
  9. calculus

    Suppose that an arrow was fired vertically upward from a crossbow at ground level and that it struck the ground 20 seconds later. If air resistance may be neglected, find the initial velocity of the bolt and the maxim altitude that …
  10. physics

    an arrow is shot vertically upward 2 seconds later it is at an height of 42m (not necessarily the highest point) with what velocity was the arrow shot how long was the arrow in flight altogether

More Similar Questions