~ II t Normal 1 No Spac i Heading 1 Heading 2 Font Paragraph Problem 3- Let\'s s

Question

~ II t Normal 1 No Spac i Heading 1 Heading 2 Font Paragraph Problem 3- Let's say your weight is 175 Ib 1Kg 222 Ib a) How much is you mass? b) How much is your weight when you are sitting on a chair? C) How much is your weight when you are in an elevator and going dowa.at acceleration a=1.0m/s2? D) How much your weight is on the surface of the Mars? The gravity on the surface of the Mars is 13of the gravity on Earth. E) Convert V-80 mileshours to kilometers per hour? 1 Km 0.62 miles SONY Control music playbock or navigate images with sig hand gestures a 2es

Explanation / Answer

a)1kg = 2.2 lb

or 1lb = 1/2.2 kg

or 175 lb = 175/2.2 kg

=79.54 kg

b)Weight does not change by change position on the surface of the earth and no external acceleration is present. hence my weight remains 175 lb

c)Weight = ma

=79.54*(9.81-1)

=700.747 N

d)Weight = mass*acceleration

=79.54*(9.81/3)

=260.096 N

e)1km =0.62 miles

or 1 mile = 1/0.62 km

so 80 mil/hr = 80/0.62 km/hr

=129.03 km/hr

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