Question

Task 1 1 Standard test for efficiency of supercar is to determine time required to speed up to 100 km/h (27 m/s). For a given car with such test in 3s determine required path. For simplicity, non-linear velocity dependence on time take as v = ct'. Task.N92 Determine an apparent weight of an hourglass closed system (glass with sand when all sand initially moves from upper-half to lower-half) in case if instead of sand we will take chemical nutrient which reacts during transition and changes its mass according to M(t) = ect, VCER.

  

Answer 1

Task 1 lets ist determine V = ct² c. s 28.2 (to reach 27m/s in 3 sec ) 27= cх 3² c=3 21 Now s= {vers at Sa 3 3 that = [+373 (27m] please note track should be long enough to Slop the car as well. 0 9 . safely 00 Taska Mass (at any point during transition ) M(t) = elt As the centre of mass moves (up or down) [accerating] this well alter the apparent weight. Need airtime of falling mass ( size of hourglass) to determine the accleration of centre of mass. [* when mass l Starts to fall it won't contribute to mass of system -Dinesh-o but when it strikes the bottom" it will cause a spike (higher than its own weight) on Weigh machine I