The velocity, in the x direction, is given by the formula: vx = -2 m/s2 t + 1 m/
ID: 1989465 • Letter: T
Question
The velocity, in the x direction, is given by the formula:vx = -2 m/s2 t + 1 m/s
(A) What is the velocity at t = 0 s?
vx(0 s) = m/s
(B) What is the velocity at t = 4 s?
vx(4 s) = m/s
The area under the velocity curve between two times is equal to the displacement (change in position) during that time interval.
(C) What is the displacement between t = 0 s and t = 4 s?
?x = m
The slope of the velocity vs time curve at a particular time is the acceleration at that time.
(D) What is the acceleration at t = 2 s?
ax(2 s) = m/s2
Explanation / Answer
A) 1m/s B) -7m/s C)delta v =-8m/s , delta t = 4 So diplacement = -12 m D)acceleration = -8/4 = -2m/(s^2)
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