at a certain instant an object is moving to the right with speed 1.0 m/s and has a constant acceleration to the left of 1.0 m/s^2. at what later time will the object momentarily be at rest?
For this problem, you would use the equation v=u+at. In this case, u=1 v=0 (when the object is at rest) a=-1
v=u+at
0=1+(-1)t
t=1 second
The later time in which the object will momentarily be at rest is determined as 1 second.
The time of motion of the object is calcualted as follows;
v = u + at
where;
when the object stops, the final velocity is zero
0 = u + at
0 = 1 + (-1)t
t = 1 s
Thus, the later time in which the object will momentarily be at rest is determined as 1 second.
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