1. The problem statement, all variables and given/known data A meteor with a mass of 1 kg moving at 20 km/s collides with Jupiter's atmosphere. The meteor penetrates 100 km into the atmosphere and disintegrates. What is the average force on the meteor once it enters Jupiter's atmosphere? (Note: ignore gravity). 2. Relevant equations K = 1/2 mv^2 W = F x d 3. The attempt at a solution I initially started this problem with F = ma in mind. I then solved for time using d = vt and got 200 seconds. Then I found acceleration using V = Vi + at and got 100 m/s^2. By plugging in 100 m/x^2 into F=ma, I get (1 kg)(100 m/s^2) = 100 N. The correct answer is 2 x 10^5. What am I doing wrong? Can't this problem be solved without using kinetics and work? Thanks.