the x-axis is time from 0-6 seconds and the y axis is Vx (m/s^2 and yes this is
ID: 1692321 • Letter: T
Question
the x-axis is time from 0-6 seconds and the y axis is Vx (m/s^2 and yes this is not a typo thats whats in the book and online) and it goes from 4 to -2 on the y-axis. the answer for this problem is -1m as the position at t=6 s but i am confused because the units of Vx threw me off..isnt m/s^2 acceleration? and if its m/s/s then what do i do? 2) Vx is the velocity of a particle moving along the x axis as shown. If x = 2.0 m at t = 1.0 s, what is the position of the particle at t = 6.0 s? the x-axis is time from 0-6 seconds and the y axis is Vx (m/s^2 and yes this is not a typo thats whats in the book and online) and it goes from 4 to -2 on the y-axis. the answer for this problem is -1m as the position at t=6 s but i am confused because the units of Vx threw me off..isnt m/s^2 acceleration? and if its m/s/s then what do i do?
Explanation / Answer
SOLUTION: from the graph it is clear that, having been considering, the time(t) along the X axis, velocity(V) along the Y axis. from the graph,we know that when time (t)=0,velocity( Ux)=4m/s and (where Ux taken as intial velocity at that point) t=2, Vx=om/s ( Vx taken as a final velocity at this point) during this motion, retarding accelaration acting on the accelaration(a) can be cal. by using the formula Vx= Ux+at on sub. the values, a=-2m/s^2 more over, from graph it is also clear that, when t=2s, Vx=0m/s ( Vx should be taken as 0 as it is intial velocity for the next case) t=6s, Vx=-2m/s In order to compute the position of the particle at t=6s.we have to use one of the kinematic relation, as Vx^2-Ux^2=2as (where s is the position of a particle at t=6s and Ux=0 because velocity is 0 in its before case) by sub. the values in the above eq.n (-2)^2-0=2(-2)s, s=-1m AND The units of Vx should always be in m/s only not in m/s/s (or) m/s^2 becomes s=-1m AND the units of Vx should be taken as m/s only becouse this is the function of velocity but not m/s^2 or m/s/s.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.