Balanced,unbalancedandresultantforces
Forcesarebalancedifforcesactingonanobjectareequalinsizeandopposite
directions.Theresultantforceistheoverallforceactingonanobject,onceall
theforcevectorsareaddedtogether.Ifthereisaresultantforceactingonan
objectitwillaccelerateinthedirectionoftheresultantforce.
Foreachofthefollowing(1-3),drawanarrowtoshowtheresultantforceand
describehowthiswillaffectthemotionoftheblock.
1)
2)
3)
4)Workouttheresultantforceoneachoftherunners.Whatwillthemotionbelikeineachcase?
12N
C
B
A
20N
RunnerAhasbeenrunningat3m/s
RunnerBhasbeenrunningat2m/s
RunnerChasbeenrunningat3.5m/s
©2016flippedaroundphysics.com
5N
25N
12N
5N