25% and .25
Step-by-step explanation:
4/16 is equal to 25% so all the answers must equal 25% and 25% and .25 are the only options that equal 25%.
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