Assume this is an acceleration graph, where the x axis represents time in seconds and the y axis represent velocity in m/s. which statement best describes the acceleration represented by the graph?
a)there is no acceleration.
b) acceleration is positive.
c) acceleration is positive and constant.
d) acceleration is positive and increasing.

D)Acceleration is positive and increasing.

Explanation:

Acceleration is defined as the rate of change of velocity per unit time; in formulas:

where is the variation of velocity and is the variation in time.

The graph shows the velocity vs the time of a moving object. We can see that is the increment on the y-axis, while is the increment on the x axis: therefore, the ratio is the slope of the curve. In fact, in a velocity-time graph, the slope of the curve corresponds to the acceleration of the object.

In this particular graph, we see that the slope of the curve continues to increase: therefore, the acceleration is positive (because the slope is positive, since the velocity is increasing) and increasing (because the slope is increasing).

0.11 m/s and 0.28 m/s should be correct

e/c, where e is its total energy