Christian Lawson-Perfect

Christian Lawson-Perfect commented on Mass held in tension by a string 9 years, 4 months ago

Tidied up the formatting, changed the title and added a description.

Christian Lawson-Perfect commented on Resolve forces on particle in equilibrium 9 years, 4 months ago

Changed the title and improved the description.

Christian Lawson-Perfect on Particle in equilibrium on an incline. 9 years, 4 months ago

Gave some feedback: Has some problems

Christian Lawson-Perfect commented on Particle in equilibrium on an incline. 9 years, 4 months ago

The diagram is misleading - it looks like $\theta_2 = \theta_1$, making $F_2$ vertical. In order for the point to be in equilibrium when resolved horizontally, $F_2$ must point at least a little bit left.

It's not stated that $F_4$ is vertical. If it was explicitly the force due to gravity, then you could expect the student to infer it's vertical, but they'd want to add in a reaction force.

Christian Lawson-Perfect on Resolve forces on particle in equilibrium 9 years, 4 months ago

Gave some feedback: Ready to use

Christian Lawson-Perfect commented on Resolve forces on particle in equilibrium 9 years, 4 months ago

Tidied up some formatting:

• Made the parts gapfills, so $F_i = $ goes just before the input.
• No need to write the first $\mathrm{N}$ in $F_i \mathrm{N} = \var{x} \mathrm{N}$.

Christian Lawson-Perfect commented on SUVAT equations question 7 9 years, 4 months ago

Formatted the input example as code instead of LaTeX.

Christian Lawson-Perfect commented on Biomedical Sciences Diagnostic Test - practice 9 years, 4 months ago

Added a description and published.

Christian Lawson-Perfect on SUVAT equations question 13 9 years, 5 months ago

Gave some feedback: Ready to use