Which object has the greatest inertia? A. 20 Kg mass moving at 20 m/s
B. 10 Kg mass moving at 5 m/s
C. 45 Kg mass moving at 10 m/s
D. 55 Kg mass moving at 1 m/s

C

Explanation:

inertia is measured using momentum, and momentum is calulated with mass times velocity.

20 kg x 20 m/s= 400N

10kg x 5 m/s = 50 N

45 kg x 10 m/s = 450N

55 kg x 1 m/s = 55N

450N is the highest therefore it has the highest inertia

they encountered severe weather for which they were poorly prepared.

the first question's answer is a.