# physics

Romeo is chucking pebbles gently up to juliet’s window, and he wants the pebbles to hit the window with only a horizontal component of velocity. He is standing at the edge of a rose garden 4.5 m below her window and 5.0 m from the base of the wall (Fig. 3-34).
How fast are the pebbles going when they hit her window?

1. 👍
2. 👎
3. 👁
1. so, if we name the takeoff point as (0,0) we want the vertex of the parabola to be at (5,4.5)

The parabola can thus be written as

y = -0.18(x-5)^2 + 4.5
so, at x=0, y' = 1.8

That means the initial angle is θ=60.9°

Now you should be able to work out the velocity components, and at the top of the arc, only the x component matters.

1. 👍
2. 👎

## Similar Questions

1. ### English

In Romeo and Juliet, why doesn't Juliet want to marry Paris? a. She is already married b. She is in love with Romeo*** c. Paris has never wooed her d. all of the above*** confused between b and d

2. ### English

8. What can readers infer from the following quote from Act V, Scene 3 of Romeo and Juliet? Romeo: O, be gone! By heaven, I love thee better than myself; For I come hither arm’d against myself: Stay not, be gone;--live, and

4. ### English 9

. Read the following line from Romeo’s monologue in Act II, Scene 2 of Romeo and Juliet, where Shakespeare employs personification: Arise, fair sun, and kill the envious moon, Who is already sick and pale with grief, That thou

1. ### Romeo and Juliet

Read the following line from Romeo's monologue in Act II, Scene 2 of Romeo and Juliet: But soft! What light through yonder window breaks? What is Romeo saying in this passage? a. Romeo has broken the window even though he threw a

2. ### English

Please help me with these question about Romeo and Juliet!!! They really are confusing me!! 1. In act 4 scene 1 of Romeo and Juliet, Paris tells Friar Laurence, "Immoderately she weeps for Tybalt's death, / and therefore have I

3. ### English

In Romeo and Juliet, which of the following illustrates Shakespeare's use of comic relief? A) A servant explains to Capulet that cooks should lick their own fingers. B) Capulet believes that Juliet is dead when she is really only

4. ### ELA

Which of the following best states a theme for Romeo and Juliet? A. Love paves the way for peace B. The power of nature overcomes the will of man C. Love is a gentle force that brings families together D. Actions in haste can

1. ### English

8.What can readers infer from the following quote from Act V, Scene 3 of Romeo and Juliet? Prince: A gloomy peace this morning with it brings; The sun for sorrow will not show his head. Go hence, to have more talk of these sad

2. ### English

In Act IV, of Romeo and Juliet, Why do Juliet's parents think she is crying? 1:Because Romeo wash banished 2: Tybalt is dead 3: Because she did not want to marry Paris I think it is 2 is this correct? Thank you

3. ### Romeo and Juliet

What event do Benvolio's lines from the opening of Act III, Scene 1 of Romeo and Juliet, hint at, or foreshadow? And, if we meet, we shall not 'scape a brawl, For now, these hot days, is the mad blood stirring. a. the conversation

4. ### Romeo and Juliet

In Act IV, Scene 1 of Romeo and Juliet, Paris tells Friar Lawrence, "Immoderately she weeps for Tybalt’s death, And therefore have I little talked of love." What makes Paris's comment an example of dramatic irony? a. Juliet is