Just 2 questions i need help with :)) thanks!!

I'm not so sure on these answers

1) 60 combinations

2) 90 or 60 combinations

Step-by-step explanation:

When doing these types of questions, use the Fundamental Counting Principle (you could also use a tree diagram which lists every possible combination individually for each item)

Basically for Fundamental Counting Principle, you multiply the amounts.

Ex: 5 jeans x 4 T-Shirts = 20             5 x 4 x 3 = 60!

     20 x 3 pairs of shoes= 60          

I wasn't sure if I had to include the right, left, right as 2 or 3.

a. 12.5 kg

step-by-step explanation:

f = ma

so

m = f/a = (2500 n)/(200 m/s²) = 12.5 kg

1 n = 1 kg·m/s²