   Chapter 3, Problem 3P

Chapter
Section
Textbook Problem

A miniature quadcopter is located at xi = 2.00 m and yi = 4.50 m at t = 0 and moves with an average velocity having components vav,x = 1.50 m/s and vav,y = −1.00 m/s. What are the (a) x-coordinate and (b) y-coordinate of the quadcopter’s position at t = 2.00 s?

(a)

To determine
The x -coordinate of the quadcopter’s position at t=2.00s .

Explanation

Given info: The x -coordinate of the quadcopter’s position at t=0s is 2.00m . The x -coordinate of the quadcopter’s average velocity is 1.50m/s .

Explanation:

The average velocity is defined as the ratio of the displacement to the time taken.

The formula for average velocity in the x direction is,

vav,x=ΔxΔt=xfxiΔt

• xf is the final x coordinate
• xi is the initial x coordinate
• Δt is the time taken

From the above equation, the final x coordinate is

xf=xi+vav,xΔt

Substitute 2

(b)

To determine
The y -coordinate of the quadcopter’s position at t=2.00s .

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