HW 2 - HW 2 Page 1 of 3 WebAssign HW 2(Homework Current...

HW 2 (Homework)
SAI SAMINENI
Phys 2210 - Physics for Scientists and Engineers, section 1, Fall 2011
Instructor: David C. Ailion
Current Score : 8.19 / 12 Due : Wednesday, August 31 2011 10:00 AM MDT
1. 2/2 points | Previous Answers
Two students stand on top of a building of height h . One throws a ball straight upward at the
same speed as as the other student who simultaneously throws a ball straight downward
toward the ground. Which of the following must be true?(Select all that apply.)
Solution or Explanation
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2. 2/2 points | Previous Answers
The driver of a car slams on the brakes when he sees a tree blocking the road. The car slows
with a constant acceleration -5.65 m/s
2
for 4.30 s, making straight skid marks 63.0 m long
ending at the tree. With what speed does the car then strike the tree?
2.50366 2.5 m/s
Solution or Explanation
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3. 0.59/2 points | Previous Answers
4. 2/2 points | Previous Answers
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