The velocity-time graph for the car during the period that it is accelerating is shown in the image attached.
How to sketch the velocity - time graph?
The velocity-time graph for the car during the period that it is accelerating is sketched by considering the following;
The final velocity of the car is calculated as;
v = u + at
where;
- u is the initial velocity of the car = 20 m/s
- a is the acceleration of the car = 3 m/s²
- t is the time of motion = 5 s
v = 20 m/s + (5 s x 3 m/s²)
v = 35 m/s
So the in the graph, the car will star accelerating at 20 m/s and within 5 seconds it will reach 35 m/s.
The complete question is below:
A car is travelling at 20 m/s. It accelerates uniformly at 3 m/s2 for 5 S.
Sketch in a velocity-time graph for the car during the period that it is accelerating, including numerical detail on the axes of your graph.