Physics June 2014 Ial physics on the go --unit 1

I calculated the gradient of the linear region too. But, the velocity was around 4.87 m/s I guess. Is it correct? :O

I calculated the gradient of the linear region too. But, the velocity was around 4.87 m/s I guess. Is it correct? :O

Guys, did you notice that time was 10(index 3) on the x-axis?

the height was too.

For the Young modulus question from the graph, do you calculate it only from the linear region or from the last point of the graph ?

i guess all people worldwide must have finished their paper by now coz it was an am paper..

The multiple choice questions, the question about the energy if the constant K on a certain wire was 2X or something, what is the E? i selected 2E...
And what about the ball that is thrown vertically upwards? i selected the one with both acc and vel up...

And what on earth do u write for the sandstone one? The fact that it has folds and some bull****? I wrote that its malleable... Some others wrote tough but I don't see how its tough because tough things don't deform plastically to "fold"... And it transfers the seismic waves. If it was tough then it would absorb all that energy and there would be no wave! :s For the walkway I put velocity is zero cuz of Newtons first law. For that stupid staircase I put workdone from the previous part into the second part and divided by the time (25s I think) to get power. For the steel bridge I out compression downwards at the top surface and tension upwards at the top surface (tho I think the tension is wrong... Supposed to be along the length of the curved bar... Initially I did this but then cut it out :c )