why do add the acceleration to gravity if the acceleration is up (positive) and gravity down (negative)?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter5: Newton's Law Of Motion
Section: Chapter Questions
Problem 66P: What force must be applied to a 100.0-kg crate on a frictionless plane inclined at 30 to cause an...
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why do add the acceleration to gravity if the acceleration is up (positive) and gravity down (negative)? 
ho
gracing bay handles will tear if fore greater than 46N applied
ि
BAG)
grootest mass that com be applied (r)
4LAN = M(981)
M = 4.689 Kg
MASS of lifted with acceleration of 130mlet
461)= M(9.81 +1.3)
M = 41.14 kg
Transcribed Image Text:ho gracing bay handles will tear if fore greater than 46N applied ि BAG) grootest mass that com be applied (r) 4LAN = M(981) M = 4.689 Kg MASS of lifted with acceleration of 130mlet 461)= M(9.81 +1.3) M = 41.14 kg
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