# Wanting to invite Juliet to his party, Romeo is throwing pebbles at her window with a launch angle of 37° from the horizontal. He is standing at the edge of the rose garden 7.0 m below her window and 10.0 m from the base of the wall. What is the initial speed of the pebbles?

Question

Wanting to invite Juliet to his party, Romeo is throwing pebbles at her window with a launch angle of 37° from the horizontal. He is standing at the edge of the rose garden 7.0 m below her window and 10.0 m from the base of the wall. What is the initial speed of the pebbles?

Step 1

Given:

The angle of projection is 37 degree.

The verticel distance from the window is 7.0 m. That is, y = 7

The horizontal distance from base of teh wall is 10.0 m. That is, x = 10

Step 2

Known fact:

Step 3

Calculation:

Let the initial velocity of the pebble be V1.

Substitute x = 10, y = 7 and θ = 37...

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