An object travels 10 m in 4 s and then another 14 m in 2 s. What is the average speed of the object?

Options

A. `4.5 ms^(-1)`
B. 4 m
C. `4s^(-1)`
D. `4 ms^(-1)`

Answer

To find the average speed of the object, we can follow these steps:

### Step 1: Calculate the total distance traveled
The object travels 10 meters in the first part and 14 meters in the second part.

Total distance = Distance in first part + Distance in second part
Total distance = 10 m + 14 m
Total distance = 24 m

### Step 2: Calculate the total time taken
The time taken for the first part is 4 seconds and for the second part is 2 seconds.

Total time = Time in first part + Time in second part
Total time = 4 s + 2 s
Total time = 6 s

### Step 3: Calculate the average speed
The average speed is calculated using the formula:

Average speed = Total distance / Total time

Substituting the values we found:

Average speed = 24 m / 6 s
Average speed = 4 m/s

### Conclusion
The average speed of the object is 4 m/s.

---