Physics

You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 7.8 m/s.

(a) How much time does it take for the tennis ball to reach its maximum height?
(b) What is the maximum height above the ground that the tennis ball reaches?
(c) When the tennis ball is at a height of 2.2 m above the ground, what is its speed?
(d) When the ball hits the ground what is its velocity?

asked by James

  1. a. V = Vo + g*t.
    V = 0 @ max h.
    Vo = 7.8 m/s.
    g = -9.8 m/s^2.
    t = ?

    b. h = 1.5 + Vo*t + 0.5g*t^2.
    Vo = 7.8 m/s.
    t = Value calculated in part a.
    g = -9.8 m/s^2.
    h = ?

    c. V^2 = Vo^2 + 2g*d.
    Vo = 7.8 m/s.
    g = -9.8 m/s^2.
    d = 2.2-1.5 = 0.7 m.
    V = ?.

    d. V^2 = Vo^2 + 2g*h.
    Vo = 0 @ max h.
    g = +9.8 m/s^2.
    h = value calculated in part b.
    V = ?.

    posted by Henry

  2. A). 1.2 s
    B). 3.81 m
    c).v= 6.8 m/s
    d) v= 27.05 m/s

    posted by Gayflor

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 8.0 m/s. (a) How much time does it take for the tennis ball to reach its maximum

  2. Physics

    You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.3 m above the ground, and it is moving at a speed of 7.4 m/s. (a) How much time does it take for the tennis ball to reach its maximum

  3. physics

    You toss a tennis ball straight upward. At the moment it leaves your hand it is at a height of 1.5 m above the ground, and it is moving at a speed of 6.4 m/s.When the tennis ball is at a height of 2.2 m above the ground, what is

  4. Physics

    A boy's hand pushes a ball through a vertical distance of 1.45 m as he throws the ball straight upward. Once the ball leaves his hand it travels an additional 22 m (straight up) before returning to earth. Find the acceleration of

  5. Physics

    You toss a coin straight up into the air. Sketch the velocity-time and acceleration-time graphs of the coin from the instant it leaves your hand until the instant it returns to your hand. Assume that the positive y direction is

  6. Physics

    Bill throws a tennis ball vertically upward such that it leaves his hand with a speed of 12 m/s. Bill catches the ball at the same height from which he released it. Assume that air resistance is negligible, so the tennis ball can

  7. Physics

    You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your hand you start running away at a speed of 3.36 m/s. How far are you from the ball, the moment it hits the

  8. Physics

    You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your hand you start running away at a speed of 3.36 m/s. How far are you from the ball, the moment it hits the

  9. Physics

    You throw a ball straight into the air from a height of 4 feet and with a speed of 8.22 m/s. The moment the ball leaves your hand you start running away at a speed of 3.36 m/s. How far are you from the ball, the moment it hits the

  10. Physics

    You throw a ball straight into the air from a height of 4 feet and with a speed of 5.3 m/s. The moment the ball leaves your hand you start running away at a speed of 2.37 m/s. How far are you from the ball, the moment it hits the

More Similar Questions