Mechanics (1 Viewer)

Joined
Mar 13, 2015
Messages
100
Gender
Male
HSC
2015
http://imgur.com/LJpmGsZ

For (ii) I keep getting an extra "+sin(phi)" at the numeratorbecause of the product rule?
for (iii) I can't show it but does that imply that dtheta/dt also equal zero? sounds odd. because, if NT is tangential, angle NTO = 90, angle NOT = 180-theta which means phi = theta-90
dphi/dt = dtheta/dt
so if dphi/dt = 0 then dtheta/dt must also equal zero? wut?
 
Last edited:

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top