the free-body diagram below shows the forces acting on a bicycle as the rider pedals to the right. The bicycle has a weight of 800 N and a pedaling force of 250 N. As it moves it encounters 75 N of air resistance. What is the net force acting on the bicycle in the x-direction?
A. 550 N to the right
B. 1125 N to the right
C. 325 N to the right
D. 175 N to the right

Question

the free-body diagram below shows the forces acting on a bicycle as the rider pedals to the right. The bicycle has a weight of 800 N and a pedaling force of 250 N. As it moves it encounters 75 N of air resistance. What is the net force acting on the bicycle in the x-direction?
A. 550 N to the right
B. 1125 N to the right
C. 325 N to the right
D. 175 N to the right

irishboy123 · Answer

draw it first

michele_laino · Answer

the driving force and the resistance force, are like in the subsequent drawing:
|dw:1437412849500:dw|

michele_laino · Answer

so the resultant force is represented by a horizontal vector directed to right, and whose magnitude is:
250-75=...newtons