Two lifeguards pull on ropes attached to a raft. If they pull in the same direction, the raft experiences a net external force of 320 N to the right. If they pull in opposite directions, the raft experiences a net external force of 109 N to the left.
(b) Find the force exerted by each lifeguard on the raft. (Disregard any other forces acting on the raft.)
N( larger force)=
N( smaller force)=
(b) Find the force exerted by each lifeguard on the raft. (Disregard any other forces acting on the raft.)
N( larger force)=
N( smaller force)=
-
Let's call them Force A and Force B.
We know A + B = 320.
We know A = B + 109.
Substitute B + 109 + B = 320.
2B = 211
B = 105.5 N
A = 214.5 N
Simple system of equations.
We know A + B = 320.
We know A = B + 109.
Substitute B + 109 + B = 320.
2B = 211
B = 105.5 N
A = 214.5 N
Simple system of equations.