Q- A skydiver of mass 80.0 kg jumps from a slow
... speed of 50.0 m/s. If the air drag is proportional to the square of velocity of the bodya) What is the acceleration of the skydiver when her speed is 30.0 m/s 2? b) What is the drag force on the skydiver when her speed is 50.0 m/s c) What is the drag force on the skydiver when her speed is 30.0 m/s? ...
... speed of 50.0 m/s. If the air drag is proportional to the square of velocity of the bodya) What is the acceleration of the skydiver when her speed is 30.0 m/s 2? b) What is the drag force on the skydiver when her speed is 50.0 m/s c) What is the drag force on the skydiver when her speed is 30.0 m/s? ...
Document
... For the main part, that means turning vectors in 4_vectors. Which means at least to find the “time component” of the 4-vector. Starting, as usual, from the simplest case. And the simplest is: the “position vector” (x,y,z). In this case, the answer is obvious, since this is where it all started: The ...
... For the main part, that means turning vectors in 4_vectors. Which means at least to find the “time component” of the 4-vector. Starting, as usual, from the simplest case. And the simplest is: the “position vector” (x,y,z). In this case, the answer is obvious, since this is where it all started: The ...
Frame of Reference
... A non‐iner.al frame of reference is one that is accelera%ng and Newton’s laws of mo%on appear invalid unless fic%%ous forces are used to describe the mo%on of objects observed in the non‐iner%al reference frame. Example: If you are in an automobile when the brakes are abruptly applied, then you wi ...
... A non‐iner.al frame of reference is one that is accelera%ng and Newton’s laws of mo%on appear invalid unless fic%%ous forces are used to describe the mo%on of objects observed in the non‐iner%al reference frame. Example: If you are in an automobile when the brakes are abruptly applied, then you wi ...
Infinitesimal strain
... In the Earth the only significant body force is gravity: fi = (0, 0, g) and in practice we neglect it ( assumed negligible) for body waves (although it is important for surface waves). Now we have the equations in terms of stress; we’d like to get them entirely in terms of displacement. Recall: ...
... In the Earth the only significant body force is gravity: fi = (0, 0, g) and in practice we neglect it ( assumed negligible) for body waves (although it is important for surface waves). Now we have the equations in terms of stress; we’d like to get them entirely in terms of displacement. Recall: ...
