[单选题]
A 2000-kg car, traveling x3ua,wmc4lao:e0r . hw (xn e5tk3pu(to the right at 30 m/s, collides with a brick wall and comes to rest t k(5upx3nwe (in 0.20 s. What is the average force the car exerts on the wall?
A. 12,000 N to the right
B. 300,000 N to the right
C. 60,000 N to the right
D. none of the above
