Recent content by Asad Raza

Homework Statement Kindly see the screenshot attached below for the question. Homework Equations I=1/3ML^2 1/12ML^2 The Attempt at a Solution In the solution to this question, the moment of inertia of the hands (when outstretched) is taken to be 1/12ML^2 (combined). I think that it should be...

Thank you. I understood the question. Thank you again for help.

Actually, I copied different values in the question. The answer with these values is 1.96 rad/s^2. Thank you for help.

I'm getting 2.12. Wondering about whether this discrepancy is just an arithmetic error?

Ahh let me try

Yeah sorry 2.1 is the length. Otherwise, is the working correct?

Homework Statement A thin, uniform, 18.5 kg post, 2.10 m long, is held vertically using a cable and is attached to a 5.00 kg mass and a pivot at its bottom end (as shown below). The string attached to the 5.00 kg mass passes over a massless, frictionless pulley and pulls perpendicular to the...

That is what I am asking that how can a force in the negative x direction make an object move in the positive x direction?

I am asserting no work is done because the force applied and the direction of movement make an angle of 180 degrees with each other. Work done is the distance moved by an object in the direction of applied force. Now, if I use scalar multiplication, it will render -6.97(3.37)cos(180)=23.4889...

Homework Statement If you apply a force F with the x component =-6.97 N and the y component = 8.47 N on a car which moves along the x-axis by a displacement of 3.37m. What is the work done on the car by your force in J? Homework Equations W=Fxd The Attempt at a Solution I think that the...

Thank you so much.

So the only force that remains is the second force that SHOULD have two components: one to cancel the x component of 12N and the other one to accelerate the mass in positive y direction. Correct?

Does the positive y direction imply that it will have no x component--it goes straight up. If yes, how would we get to know the angle at which it acts? Also, the force that acts in positive x direction only has one component or will it have an upward component too? If yes, what angle?

Homework Statement Two forces are acting on a 4.87-kg object that moves with acceleration 5.47 m/s^2 in the positive y-direction. If one of the forces acts in the positive x-direction and has magnitude of 12 N, what is the magnitude of the other force in N? Homework Equations F=ma The...

And How is Universigty Physics by Young and Freedman?