Pls help me answer this 1. If a ball that is 40 meters above the ground is thrown horizontally at 4 meters persecond, how long will it take for the ball to hit the ground?Given:Solution:2 dydy = 40 metersVz - 4 m/sVoy -0 m/sRequired to Find:dy = doy + Voy t --9dy = doy + 0 –2 dyt=?Diagram:dy = 0 – 5gt?dy = - 5gt?2 (4, = - or)22 (40 m)= t|-(-9,8)2 dy- gt22.86 seconds ~ 3 seconds-9· 2. A sniper fired his gun horizontally from the top of a 70 m tall building with avertical velocity of 350 m/s. If air resistance is negligible, how far from thebase of the building will the bullet land?3. An air support dropped a package from an airplane 340 m above the ground.If there is no air resistance, how long will the package take to reach theground.

Horontal component of accelarion is zero in projectile as only acceleration due to gravity

Answered: 1. Ifa ball that is 40 meters above the…

1. Ifa ball that is 40 meters above the ground is thrown per second, how long will it take for the ball to hit the ground?

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter4: Motion In Two And Three Dimensions

Section: Chapter Questions

Problem 54P: The Lunar Roving Vehicle used In NASA’s late Apollo missions reached an unofficial lunar land speed...

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Question

Pls help me answer this

1. If a ball that is 40 meters above the ground is thrown horizontally at 4 meters per
second, how long will it take for the ball to hit the ground?
Given:
Solution:
2 dy
dy = 40 meters
Vz - 4 m/s
Voy -0 m/s
Required to Find:
dy = doy + Voy t -
-9
dy = doy + 0 –
2 dy
t=?
Diagram:
dy = 0 – 5gt?
dy = - 5gt?
2 (4, = - or)2
2 (40 m)
= t
|-(-9,8)
2 dy
- gt2
2.86 seconds ~ 3 seconds
-9
· 2. A sniper fired his gun horizontally from the top of a 70 m tall building with a
vertical velocity of 350 m/s. If air resistance is negligible, how far from the
base of the building will the bullet land?
3. An air support dropped a package from an airplane 340 m above the ground.
If there is no air resistance, how long will the package take to reach the
ground.

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