Question $3(3$ points$)$

A bike rider can generate $100$ watts of power while pedaling at $80$ rpm $.$ The tires size is $700$ mm $,$ the front $($crank$)$ sprocket has $31$ teeth and the rear sprocket has $23$ teeth. What is the thrust in N at the rear wheel. Provide the answer with $O$ decimal places of accuracy $($ie: $28)$

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Question $4(2$ points$)$

A bike rider can generate $110$ watts of power while pedaling at $70$ rpm $.$ The tires size is $700$ mm $,$ the front $($crank$)$ sprocket has $39$ teeth and the rear sprocket has $25$ teeth. The mass of the bike and rider is $90$ kg $.$ Assuming no wind resistance, what is the ground speed in $k\frac{m}{?}$ hour. Provide the answer with $1$ decimal places of accuracy $($ie: $15\mathrm{.}1)$

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