An object travelled 900 m in 50 seconds50\text{ seconds}50 seconds.
Use the equation:
distance travelled (m)=speed (m/s)×time (s) \text{distance travelled (m)} = \text{speed (m/s)} \times \text{time (s)} distance travelled (m)=speed (m/s)×time (s)What is the speed of the object?
0.056 m/s0.056\text{ m/s}0.056 m/s
18 m/s18\text{ m/s}18 m/s
950 m/s950\text{ m/s}950 m/s
45 000 m/s45\,000\text{ m/s}45000 m/s