Description of Motion 5 Time (s) Time (s) IO 5 Time (s) 10 5 Time (s) 10 Descrip
ID: 1492816 • Letter: D
Question
Description of Motion 5 Time (s) Time (s) IO 5 Time (s) 10 5 Time (s) 10 Description of Motion: 0 0 5 Time (s) 10 0 5 Time (s) Time (s) 10 5 Time (s) 10 H. Description of Motion Move toward the detector with decreasing speed then just as you have come to rest, move away from the detestor with increasing speed. 5 Time (s) 10 0 Time (s) 10 Time (s) 10 How do the acceleration graphs for F, G, and H compare? Is it possible to have: a positive acceleration and slow down? a negative acceleration and speed up? I.Explanation / Answer
(F)
fig 1: The acceleration is constant with the time, and the value of the acceleration is zero.
fig 2:
Slope of the position versus time graph gives the velocity. The slope of the line is constant, so, the velocity is constant. The sign of the slope is positve, So, the motion is in positive direction with the constant velocity.
fig 3:
Slope of the velocity versus time graph gives the acceleration. The slope of the line is constant, so, the acceleration is constant. The sign of the slope is positve, So, the motion is in positive direction with the constant acceleration.
(G)
fig 1:
The acceleration is constant and is -2 m/s^2. the motion is deceleration.
fig 2:
The slope of the tangential to the curve that is velocity is decreasing with the time. So, the motion is decelerating.
fig 3:
velociyt is decreasing in positive direction. so, the motion is decelerating in negative direction. The body is coming to res.