8/19/2019 Assessed Physics Questions 2014

1/1

Assessed Physics Questions 2014(10 % of module)

Q1 For the expansion of our production facility we need to demolish our old office building

and have hired Wrec!t"#o ltd for the tas$ hey propose to bring a &0 m crane with a

'0g wrecing ball$ he main building components are bric walls and wooden beams$ Wehave data leading us to believe that the brics will yield at about 0$0 *m&+ while thewood will do so at about 1, *m&$

-o you thin Wrec!t"#o are up to the .ob/

Q& wo inclined slopes are touching forming a trough$ ball of mass m lies at the bottom

of the trough between the two slopes$ ne of them is inclined &0 degree+ the other 0

degree to the hori2ontal$ he slopes extend to the same height$ ball of mass m isreleased from rest at the top of the 0 degree slope$

a) Will the 1 m ball return to its original position+ or if not+ where will it end up/

b) Will the m ball move+ and if so+ how far/c) if both move into opposite directions+ will they collide again/

(please include mathematical proof3)

here is not enough information for single uni4ue answers$ 5ou need to mae made

assumptions and decisions$