A computer model displays the motion of a particle on a coordinate system in real time. At time t = 0, the particle is at the origin ofthe coordinate system and has velocity components vx = 0 and vy = 6.8 m/s. The particle has acceleration components ofax = -5.2 m/s² and ay = 0.(a) What are the x and y positions of the particle, in meters, at t = 4.5 s?X =y =Vxm(b) What are velocity components of the particle, in m/s, at t = 4.5 s?m/sm/s=m(c) How does the speed of the particle change from t = 0 to t = 4.5 s?O The particle's speed increases with time.O The particle's speed decreases with time.O The particle's speed remains constant.O The particle's speed increases and then decreases with time.

Name: A computer model displays the motion of a particle on a coordinate sy
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Description: A computer model displays the motion of a particle on a coordinate system in real time. At time t = 0, the particle is at the origin ofthe coordinate system and has velocity components vx = 0 and vy = 6.8 m/s. The particle has acceleration component

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College Physics

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ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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A computer model displays the motion of a particle on a coordinate system in real time. At time t = 0, the particle is at the origin of
the coordinate system and has velocity components vx = 0 and vy = 6.8 m/s. The particle has acceleration components of
ax = -5.2 m/s² and ay = 0.
(a) What are the x and y positions of the particle, in meters, at t = 4.5 s?
X =
y =
Vx
m
(b) What are velocity components of the particle, in m/s, at t = 4.5 s?
m/s
m/s
=
m
(c) How does the speed of the particle change from t = 0 to t = 4.5 s?
O The particle's speed increases with time.
O The particle's speed decreases with time.
O The particle's speed remains constant.
O The particle's speed increases and then decreases with time.

Expert Solution

Step 1

Given Data:

At t=0, the velocity component of the particle in x- direction $v_{x} = 0 \frac{m}{s}$

At t=0, the velocity component of the particle in y- direction $v_{y} = 6.8 \frac{m}{s}$

At t=0, the acceleration component of the particle in x- direction $a_{x} = - 5.2 \frac{m}{s^{2}}$

At t=0, the acceleration component of the particle in y- direction $a_{y} = 0 \frac{m}{s^{2}}$

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