Final answer:
The bug's speed is 1.5 cm/s.
Step-by-step explanation:
To calculate the bug's speed in cm/s, you need to divide the distance it walks in one minute by the time taken. The bug walks a distance of 90 cm in 1 minute, so its speed can be calculated as:
Speed = Distance / Time = 90 cm / 1 minute = 90 cm/minute
To convert cm/minute to cm/s, you need to divide by 60 (since there are 60 seconds in a minute). Therefore, the bug's speed is:
Speed = 90 cm/minute ÷ 60 = 1.5 cm/s