Today I was working on some Vectors exam questions with my Y13 mechanics class and I came across this question:
A student had answered it and had gotten part d wrong. What he had done was this:
I have recreated is incorrect working.
Obviously he had found out when the ship was at the lighthouse, instead of 10km away. I explained this to him and started to explain how he should have tackled this when a sudden realisation angered me.
Now for those if you that didn’t work through the question, here is the actual answer:
Can you see what had me infuriated?
This is an impossible…
Continue reading at: