spank_meh
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umm would any1 be so kinds and explain q4 and 10 from 2004 hsc? i have the answers but i dun really get the whole answer thing :S
4. An object of rest mass 8.o kg moves at a speed of .6c relative to an observer. What is the observed mass of the object?
Answer is B... when it gives the answer it goes 8 over root [1-.6 squared over 2 squared]
were on earth does the two come from? shouldnt it be just the .6 squared???
10. i dont really have the diagram sorry.. im sure you all have the question... argh why is the answer A???
thnx
4. An object of rest mass 8.o kg moves at a speed of .6c relative to an observer. What is the observed mass of the object?
Answer is B... when it gives the answer it goes 8 over root [1-.6 squared over 2 squared]
were on earth does the two come from? shouldnt it be just the .6 squared???
10. i dont really have the diagram sorry.. im sure you all have the question... argh why is the answer A???
thnx