1.0 A girl stands inside a lift on the second floor of an 18 storey building. If the lift is
ascending upwards at an acceleration of 3ms-2
and she weighs 60kg, determine the reaction of
the lift at the girl's feet. (3mks)
line

force is mass*acceleration.

we have a very small mass: 11.4*0.001 kg

if we want 0.035n of force, we need an acceleration:

0.035 = 11.4*0.001*a

a = 0.035/(11.4*0.001) m/s^2

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answer: 31, 5556. 952 seconds