Post a New Question

physics

posted by on .

A 0.052-kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow over a distance of 0.75 m.

With what speed does the arrow leave the bow?

  • physics - ,

    The average force multiplied by the 0.75 m distance is the work done on the arrow, and equals the kinetic energy of the arrow when it leaves the bow.

    Therefore 80 x 0.75 = 60 J = (1/2) m V^2

    You know what the arrow's mass (m) is; so solve for V

  • physics - ,

    10.95 m/s

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question