Question

how does the graph of velocity vs. time look for something with a constant positive acceleration?
a.a horizontal line.
b. an upward sloping straight line.
c.a downward sloping straight line.
d.a curving line with upward slope.

Answer 1

Answer:

The correct answer is option b.

Explanation:

In velocity vs time graph, vertical axis represent velocity vector and horizontal axis represents time. The slope of the line obtained in this graph is equal to the acceleration.

$Slope= \frac{Velocity}{Time}=Acceleration$

• If the line is straight makes an acute angle with horizontal axis then it is considered as positive acceleration.
• If the line is straight makes an obtuse angle with horizontal axis then it is considered as negative acceleration or deceleration.