Question

The inequality 4.3S + 2.1N < 250 tells us that the total amount of food Chisaka needs for all the days that she spacewalks is less than 250 kg. Since she spacewalks for S days, she needs 4.3S kg of food for spacewalking. Therefore, Chisaka needs 4.3 kg of food for each day that she spacewalks?

Answer 1

Calculating Chisaka's mass using the provided force and acceleration involves using Newton's law of motion, resulting in a mass of approximately 56.0 kg. Additionally, Chisaka requires 4.3 kg of food per day for spacewalking.

Step-by-step explanation:

If we want to calculate Chisaka's mass based on the known force exerted and the acceleration measured, we use Newton's second law of motion, which states that force equals mass times acceleration (F = ma). Here, the net external force (F) is 50.0 N, and the acceleration (a) is 0.893 m/s². To solve for mass (m), we rearrange the formula to m = F/a, which gives us m = 50.0 N / 0.893 m/s².

Thus, Chisaka's mass is approximately 56.0 kg.

As for the second question, the total amount of food Chisaka needs for spacewalking is indeed represented by 4.3S kg, where S is the number of spacewalking days. Hence, Chisaka needs 4.3 kg of food for each day that she spacewalks.