The Speed of the Rocket and the Tortoise

Introduction:
In this question, we are given the speeds of a rocket and a tortoise. The rocket moves at a speed of 8 km/hr, while the tortoise moves at a speed of 8 cm/hr. We need to find the difference between their speeds.

Understanding Speed:
Before we calculate the difference between their speeds, let's understand what speed is. Speed is a measure of how fast an object is moving. It is defined as the distance covered by an object in a given amount of time. In this case, the speed of the rocket and the tortoise is given in kilometers per hour (km/hr) and centimeters per hour (cm/hr), respectively.

Calculating the Difference:
To find the difference between their speeds, we need to subtract the speed of the tortoise from the speed of the rocket.

Speed of the rocket = 8 km/hr
Speed of the tortoise = 8 cm/hr

To calculate the difference, we need to convert the speed of the rocket to the same unit as the speed of the tortoise. Let's convert the speed of the rocket from km/hr to cm/hr.

Converting km/hr to cm/hr:
1 km = 100,000 cm (since 1 km = 1000 m and 1 m = 100 cm)
1 hr = 60 min = 60 * 60 sec = 3600 sec

To convert km/hr to cm/hr, we multiply the given speed in km/hr by 100,000.

Speed of the rocket in cm/hr = 8 km/hr * 100,000 cm/km = 800,000 cm/hr

Now that we have both speeds in the same unit, we can calculate the difference.

Difference in speeds = Speed of the rocket - Speed of the tortoise
Difference in speeds = 800,000 cm/hr - 8 cm/hr
Difference in speeds = 799,992 cm/hr

Conclusion:
The difference between the speeds of the rocket and the tortoise is 799,992 cm/hr. This means that the rocket is moving much faster than the tortoise.