PROBLEM 2.37 You drop a water balloon straight down from your dormitory window 100 m above your friend's head. At 2.5 s after you drop the balloon, your friend (not aware that the balloon has water in it) fires a dart from a gun, which is at the same height as his head, directly upward toward the balloon with an initial velocity of 25 m/s. 47. How long after you drop the balloon will the dart burst the balloon? 1.246 s с. 1.446 s d. 1.546 s а. b. 1.346 s 48. How long after the dart hits the balloon will your friend have to move out of the way of the falling water? Assume the balloon breaks instantaneously at the touch of the dart. 0.57 s c. 0.87 s d. 0.77 s а. b. 0.67 s

PROBLEM 2.37 You drop a water balloon straight down from your dormitory window 100 m above your friend's head. At 2.5 s after you drop the balloon, your friend (not aware that the balloon has water in it) fires a dart from a gun, which is at the same height as his head, directly upward toward the balloon with an initial velocity of 25 m/s. 47. How long after you drop the balloon will the dart burst the balloon? 1.246 s с. 1.446 s d. 1.546 s а. b. 1.346 s 48. How long after the dart hits the balloon will your friend have to move out of the way of the falling water? Assume the balloon breaks instantaneously at the touch of the dart. 0.57 s c. 0.87 s d. 0.77 s а. b. 0.67 s

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter3: Motion Along A Straight Line

Section: Chapter Questions

Problem 71P: A diver bounces straight up from a diving board, avoiding the diving board on the way down, and...

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Question

PROBLEM 2.37
You drop a water balloon straight down from your dormitory window 100 m above
your friend's head. At 2.5 s after you drop the balloon, your friend (not aware that
the balloon has water in it) fires a dart from a gun, which is at the same height as his
head, directly upward toward the balloon with an initial velocity of 25 m/s.
47. How long after you drop the balloon will the dart burst the balloon?
С. 1.446 s
d. 1.546 s
а.
1.246 s
b.
1.346 s
48. How long after the dart hits the balloon will your friend have to move out of the
way of the falling water? Assume the balloon breaks instantaneously at the
touch of the dart.
0.57 s
c. 0.87 s
d. 0.77 s
а.
b.
0.67 s

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