In the CGS system, the magnitude of force is given in dyne. Now, let's consider another system where the fundamental quantities are kilogram, meter, and minute. We need to determine the magnitude of force in this system.

To find the magnitude of force in this system, we can use the equation F = ma, where F is the force, m is the mass, and a is the acceleration. In this system, the unit of mass is kilogram, the unit of length is meter, and the unit of time is minute.

Let's break down the equation and conversions step by step:

1. Conversion of mass:
- Given: Force is 100 dyne.
- We know that 1 dyne is equal to 1 gram * centimeter per second squared (g * cm/s^2).
- To convert the mass from grams to kilograms, we divide by 1000 (since there are 1000 grams in a kilogram).
- So, the mass in kilograms is 100 dyne / (1000 g/kg) = 0.1 kg.

2. Conversion of time:
- Given: Time is in minutes.
- We need to convert minutes to seconds since the SI unit for time is seconds.
- There are 60 seconds in a minute, so we multiply the time by 60.
- Let's assume the acceleration is 1 m/s^2.

3. Finding the force:
- Using the equation F = ma, we can substitute the values:
F = (0.1 kg) * (1 m/s^2) = 0.1 kg * m/s^2.
- Since the unit of force in the new system is kilogram * meter per second squared (kg * m/s^2), the magnitude of force is 0.1 kg * m/s^2.

In summary, in the system where the fundamental quantities are kilogram, meter, and minute, the magnitude of the force is 0.1 kg * m/s^2.