Multiple Choice
When a rock thrown straight upwards gets to the exact top of its path, its
A) velocity is about 10 m/s and its acceleration is about 10 meters per second per second.
B) velocity is about 10 m/s and its acceleration is zero.
C) velocity is zero and its acceleration is about 10 meters per second per second.
D) velocity is zero and its acceleration is zero.
E) none of these
Correct Answer:

Verified
Correct Answer:
Verified
Q12: Which of the following is not a
Q13: An airplane flies at 100 km/h in
Q14: Someone standing at the edge of a
Q15: Galileo's use of inclined planes allowed him
Q16: Consider drops of water that leak at
Q18: A bullet is fired straight down from
Q19: A ball is thrown upwards and returns
Q20: Starting from rest, the distance a freely-falling
Q21: It takes 6 seconds for a stone
Q22: At one instant an object in free