For each question type the final answer ONLY.
Round off to two decimal places where needed
For each question type the final answer ONLY.
Round off to two decimal places where needed
A bus is travelling south at 20 m.s-1 when the driver sees a child run in front of the bus. The bus driver applies the brakes and the bus stops in time. Which is the best description of the velocity and acceleration of the bus after the brakes are applied?
north | south | |
|---|---|---|
Velocity | ||
Acceleration |
The graph shows the velocity of an object over time. Which one of the following options correctly shows how the acceleration of the object changes with time?