2.1 fill in the blanks {a) The volume of a cube of side 1cm is equal tom3
b) The surface area of a solid cylinder of radius 2 0 cm and height 10.0 cm is equal tomm2
(c) A vehicle moving with a speed of 18 km h coversm in 1s
(d) The relative density of Iead is 11.3. Its density is
g cm-3 or kg m-3

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During the experiment if you could triple the breakaway magnetic force with all other quantities left unchanged, what is the new value for the critical velocity if it was v0 (initial velocity), initially? (b) now if you halved the radius with all other quantities left unchanged, what is the new critical velocity if it was v0 (initial velocity), initially? (c) if during the experiment, critical velocity quadrupled with all other quantities left unchanged, what is the new breakaway force if its magnitude was initially f0,?