a)A baby carriage is pulled to right with force of 2.4 N to left with force of 3

Question

a)A baby carriage is pulled to right with force of 2.4 N to left with force of 3.5N forward with force of 6.2N and backward with force of 0.5N What is the direction of the net external force on the carriage measured from straight ahead. Give angle ? b) Two forces are exerted on object One straight down at 15N on facing to right at 9N At what angle and direction will net force act upon object. c) Wind exerts force of 158N North on raft, water exerts force of 82 N East on raft How many degrees east of north is net external force directed? a)A baby carriage is pulled to right with force of 2.4 N to left with force of 3.5N forward with force of 6.2N and backward with force of 0.5N What is the direction of the net external force on the carriage measured from straight ahead. Give angle ? b) Two forces are exerted on object One straight down at 15N on facing to right at 9N At what angle and direction will net force act upon object. c) Wind exerts force of 158N North on raft, water exerts force of 82 N East on raft How many degrees east of north is net external force directed?

Explanation / Answer

then direction is ? = tan^-1( -5.7/1.10) = - 79 or 259 b) The two forces are F1 = -15N j and F2 = 9Ni
then the direction ? = tan^-1(-15/9) = -59 or 121 from right c) The wind force F1 = 158j    the force exert by water F2 = 82Ni the direction of the net force ? = tan^-1(158/82) = 62.5   

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