Answer:
(3) 0.020km/s²
Explanation:
The option with greatest acceleration is the one with greatest magnitude.
To do this, we have to analyse each if the given options.
1. 200m/s.
This doesn't represent acceleration because acceleration is not measured in m/s. Rather, this option is a measure of velocity..
2. 200 cm/s²
[Convert to m/s²]
= 200 / 100 m/s²
= 2 m/s²
3. 0.020 km/s²
[Convert to m/s²]
= 0.020 * 1000m/s²
= 20m/s²
4. 0.002 km/s²
[Convert to m/s²]
= 0.002 * 1000 m/s²
= 2m/s²
By comparison options 1 through 4, option (3) has the highest magnitude of acceleration.
Hence, 0.020km/s² is the highest acceleration
