Recent content by mxh91

Thank you! =] I understand it now. You explained it well, it was just my understanding. Initially, I didn't realize that this was a torque problem, lol.

Ohh! Let me see if I get this right. The reason why we take moments about the left person is because there is an external force (weight of 60 kg person) acting on the left side of couch right? So we set the moments about the left equal the moments about the right (not sure why). So (60 kg x...

Hey is the answer to this problem 1.29 m? Sorry for the huge bump, I didn't want to post something that was already posted. I just need someone to confirm this please?

Hmmm, the Center of Mass of the couch is at located in the middle of the couch. But since we have external forces acting on the couch, would this center of mass point move? If so, I have to find this new point?

Hmm, I'm confused about the moments of left person. Would the total force exerted by both right and left person be 784N since the total mass is 80 kg and I multiplied it by 9.8 m/s^2?

So I have to take moments about the left person because the 60 kg person is siting closer to him right? So would it be (60 kg)(0.5 m)/(60 kg + 20 kg) ?

Thanks for the picture! The way I would think about solving this problem is that since no one is sitting on the right side of the couch, the person on the right is lifting the right half of the couch's weight. So that would be 20 kg / 2 = 10 kg. Then you multiply this weight with gravity's...

Homework Statement Two people are carrying a 2 m long couch with a mass of M=20kg level with the horizontal by lifting it from it ends. The center of mass of the couch is 1 m from each end. While it is being carried, another person with a mass m of 60 kg sits on the couch 0.5 m from one end...

Homework Statement The vector A has a magnitude of 5 mph and points along the x-axis, vector B has a magnitude of 8 mph and makes an angle of 150 degrees, and vector C has a magnitude of 10 mph and an angle of 255 degrees. Find the total vector T = A + B + C graphically by tracing the arrows...

Sorry, can you show me how the average speed is 35 km/h?

Hi, I'm Michael. I am new to Physics. I just learned about velocities from an online website and I still don't quite get it. I know that in order to find velocity, I have to take the the displacement and divide it by time: V = (delta)d / (delta) t Here's what I am confused about. Let's say I...