Question

A rocket travels 1.3 km in 62 ms. What is its average speed in m⋅s−1? Do not give your answer in scientific notation. The answer should be given to 2 significant figures.

Answer 1

The average speed of the rocket is approximately 21000 m/s.

Step-by-step explanation:

To find the average speed, we divide the distance traveled by the time taken:

Average Speed = Distance / Time

Given that the rocket travels 1.3 km in 62 ms, we can convert the distance to meters and the time to seconds:

Average Speed = 1.3 km / 62 ms = 1300 m / (62/1000) s = 1300 / 0.062 m/s = 20967.74 m/s

Rounding this to 2 significant figures, the average speed of the rocket is approximately 21000 m/s.