Post by: DannyN on February 23, 2011, 07:52:58 pm
1)If the skier has an acceleration of 2m/s^2 due north, what is the tension in the rope towing the waterskier.
2)If the frictional forces opposing the forward motion of the boat total 600N, what is the thrust force applied to the boat by the motor?
Im sorry im horrible at this stuff! Please help! THANKS =D
Post by: onur369 on February 23, 2011, 08:16:29 pm
T-240N= 140
T= 380N. Am I correct?
Post by: xZero on February 23, 2011, 08:24:31 pm
T-240N= 70x2
T-240N= 140
T= 380N. Am I correct?
You're right.
2) Draw a force diagram, the forces opposing the boat's movement is the tension force from the waterskier and the friction force. Therefore the total force opposing the boat is 600 + 380 = 980N
Post by: DannyN on February 23, 2011, 08:37:40 pm