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stunt motorcyclist biker bob rides his bike inside a futuristic rotating space station—a giant rotating donut-shaped structure in space. the normal support force feels like weight to him. as he rides his bike in the opposite direction to the station's rotation, the normal force

a. remains unaffected.

b. increases. -incorrect

c. decreases.

they start with the same

what is the speed of a softball that travels 20m in 2secs

speed = 20/2 = 10 m/s

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west