Recent content by Yodaa

So from what i have understood, as @ehild mentioned, i had taken centre of mass as the axis which means i should have taken the static friction acting at the bottom into count(and should not have said that the friction does not act at the bottom what was i even thinking:cry:) And approaching as...

Ive taken the centre of mass as the axis of rotation. So i think it will still be F x R? Also the correct answer given is 6F/5m

Homework Statement A tangential force F acts at the top of a thin spherical shell of mass m and radius R. Find the acceleration of the shell if it rolls without slipping. Homework Equations Since the shell is rolling, friction does not act at the bottom. So equating the torque, F*R= I*α The...

@mathman that is exactly what i mentioned above...

@berkeman I am sorry i don't understand how that relates to negative acceleration for the first and positive acceleration for the second:oldconfused:

1. http://www.physicsclassroom.com/Class/1DKin/U1L3a16.gif 2. http://www.physicsclassroom.com/Class/1DKin/U1L3a17.GIF In the first graph, I get that that the slope is negative and that the object is speeding up And in the second graph, the slope is negative and the object is slowing down But...

I got the answer after reading up about direction cosines! Thanks for the help @SteamKing

oh i had completely misinterpreted the question! Thanks for the help @Yosty22

Homework Statement the angles which[/B] î + ĵ + √2k̂ makes with x axis, y-axis and z axis are? The Attempt at a Solution the question is basically asking us what angle î + ĵ + √2k̂ makes with î + ĵ + k̂ right? So since √2 is just the magnitude i thought the answer would be 90, 90, 90 the...