[ 551 ] Physical Science GED ® TEST SCIENCE FLASH REVIEW • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • Which set of data accurately describes a car’s motion under constant deceleration? v v A B C D t t A clinical researcher has learned that five slots have opened up in a clinical drug trial. Fifty applicants are eligible for the positions. Which is the possible number of permutations? A. 250 B. 2,118,760 C. 254,251,200 D. 15,625,000,000 A 2,000-kg truck accelerates at 40,000 m/s 2 . What is the force acting on the truck? A. 200 N B. 40,000 N C. 40 million N D. 80 million N