You are pedaling forward on your bike. which of the following would decrease your acceleration?
1 answer:
B. An increase in your mass
Because acceleration is inversely proportional to the mass of the object.
![a∝ \frac{1}{m}](https://tex.z-dn.net/?f=a%E2%88%9D%20%5Cfrac%7B1%7D%7Bm%7D%20)
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Answer:
work = 1728
Power = 134
Explaination:
by using the formula,
Work(W)= Force(F)×Distance(D)
<h2>
and</h2>
Power(P)= Work(W)/Time taken(T)
Part a
Answer: 17.58 km/h
![Average speed=\frac{Total\hspace{1mm}Distance}{Total\hspace{1mm}Time}](https://tex.z-dn.net/?f=%20Average%20speed%3D%5Cfrac%7BTotal%5Chspace%7B1mm%7DDistance%7D%7BTotal%5Chspace%7B1mm%7DTime%7D)
Total Distance =10 km
Total time =0.5689 h
![\Rightarrow Average speed=\frac{10\hspace{1mm}km}{0.5689\hspace{1mm}h}=17.6 \hspace{1mm}km/h](https://tex.z-dn.net/?f=%5CRightarrow%20Average%20speed%3D%5Cfrac%7B10%5Chspace%7B1mm%7Dkm%7D%7B0.5689%5Chspace%7B1mm%7Dh%7D%3D17.6%20%5Chspace%7B1mm%7Dkm%2Fh)
Part b
Answer: 17.626 km/h
![Average speed=\frac{Total\hspace{1mm}Distance}{Total\hspace{1mm}Time}](https://tex.z-dn.net/?f=%20Average%20speed%3D%5Cfrac%7BTotal%5Chspace%7B1mm%7DDistance%7D%7BTotal%5Chspace%7B1mm%7DTime%7D)
Total Distance =42.195 km
Total time =2.3939 h
![\Rightarrow Average speed=\frac{42.195\hspace{1mm}km}{2.3939\hspace{1mm}h}=17.626\hspace{1mm}km/h](https://tex.z-dn.net/?f=%5CRightarrow%20Average%20speed%3D%5Cfrac%7B42.195%5Chspace%7B1mm%7Dkm%7D%7B2.3939%5Chspace%7B1mm%7Dh%7D%3D17.626%5Chspace%7B1mm%7Dkm%2Fh)
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hope this helps