1.

A skateboarder lands on all four wheels after riding a railing. The skateboarder exerts 3525 kPa of pressure on the ground, and the area on the bottom of a single wheel is 0.0001 m2. Determine the mass of the skateboarder in kg. (1 kPa = 1000 Pa) assume Gravity g=10 N/kg weight (W)=mass (m) x gravity(g)

Answer»

ANSWER:

PRESSURE = Force/Aarea of FOUR WHEEL is

= 0.0001*4

=0.0004P

= 900/0.0004

= 2250000P

= 2.25*10^5 N/m^2  



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