Physics

posted by .

a ball is thrown vertically upward from the ground with the velocity of 30m/s. a) how long will it take to rise to its highest poitn? b) how high does the ball rise? c) how long after projection will the ball have a velocity of 10m/s? d) what is the total time of flight?

  • Physics -

    a ball is thrown vertically upward from the ground with the velocity of 30m/s. a) how long will it take to rise to its highest poitn? b) how high does the ball rise? c) how long after projection will the ball have a velocity of 10m/s? d) what is the total time of flight?

    From Vf = Vo - gt, 0 = 30 - 9.8t yielding t = 3.06 sec.

    From h = Vo(t) - g(t^2)/2, h = 30(3.06) - 4.9(3.06)^2 yielding h = 45.88m.

    From Vn = Vo - gt, 20 - 9.8t yielding t = 2.04 sec.

    Since the fall time equals the rise time, the total flight time is 2(3.06) = 6.12 sec.

  • Physics -

    How do we handle something without a symetrical rise/fall time. An object thrown vertically from a window is the basis of this question

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physics

    A ball is thrown vertically upward with a speed of 25.0 m/s from a height of 2.0 m. How high does the ball rise?
  2. college

    a ball is thrown vertically upward from the ground with the velocity of 30m/s, a)how long will it take to rise to its highest point?
  3. physics

    A ball is thrown vertically upward with a speed of +13.0 m/s. (a) How high does it rise?
  4. Physics please help!!!!!!!

    A ball is thrown vertically upward (assumed to be the positive direction) with a speed of 21.0 m/s from a height of 9.0 m. (a) How high does the ball rise from its original position?
  5. physics

    A ball is thrown vertically upward with a speed of +10.0 m/s. (a) How high does it rise?
  6. physics

    A ball is thrown vertically upward with a speed of +10.0 m/s. (a) How high does it rise?
  7. physics

    A ball is thrown vertically upward with a speed of 19.0 m/s. (a) How high does it rise?
  8. Physics

    A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise?
  9. physics

    A ball is thrown vertically up from the edge of a 150 m building with a veloicty of 10m/s. (A) how high did the ball rise?
  10. physics

    A ball is thrown vertically upward with a speed of 19.0 m/s. (a) How high does it rise?

More Similar Questions