Unit: Mechanics
Year: 1997 Question#: 2
Question: A baseball pitcher throws a fastball at 42 meters per second. If the batter is 18 meters from the pitcher how much time does it take for the ball to reach the batter.
(1 ) 1.9s
(2 ) 2.3s
(3 ) 0.86s
(4 ) 0.43s
What is this question really asking?
Explanation by: Eric D
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Answer 1
1.9s
INCORRECT
You divided wrong Try using
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Answer 2
2.3s
INCORRECT
You switched the numbers and divided 42 by 18.
Try using
.
return to top Answer 3
.86s
INCORRECT
You might have had the right answer of .43 you just doubled it. Try using
.
return to top Answer 4
.43s
CORRECT
You used the formula
correctly.
return to top What's this question really asking?
How do you figure out the time involved with moving objects when given speed and distance? return to top
