A truck is driving forward at a constant 8 m/s in the i direction for 1U s. the tires of the truck provides a forward force of 2, 500i N. Assume that friction between the axle and car is negligible, at least compared to the air friction experienced by the truck. What is the force that the car exerts on the road, FCR, and what is the force that the car exerts on the air molecules, fcA, as it drives down the road? (A) FCR = -250 i N and FCA = -250 i N (B) FCR = -250 i N and FCA = +250 i N (C) FCR=+250 i N and FCA = -250 i N (D) FCR =+250i N and FCA= +250î N (E) FCR = -2, 500 i N and FCA = -2, 500 î N (F) FCR= -2,500 i N and FCA = +2, 500 î N (G) FCR = +2,500 i N and FCA= -2, 500 î N (H) FCR = +2, 500 î N and FCA = +2, 500 î N

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Cut off says during that time the friction from the tires. Ignore the numbers in the first sentence and use a truck is driving forward at a constant speed in the i direction
A truck is driving forward at a constant 8 m/s in the i direction for 10 s. During that time,
the tires of the truck provides a forward force of 2, 500 i N. Assume that friction between the axle and car is
negligible, at least compared to the air friction experienced by the truck. What is the force that the car exerts on
the road, FCR, and what is the force that the car exerts on the air molecules, fcA, as it drives down the road?
(A) FCR = -250 i N and FCA = -250 î N
(B) FCR = -250 i N and FCA = +250 i N
(C) FCR = +250 i N and FCA = -250 i N
(D) FCR=+250i N and FCA = +250î N
(E) FCR= -2,500 i N and FCA = -2, 500 î N
(F) FCR = -2,500 i N and FCA = +2, 500 î N
(G) FCR=+2, 500 i N and FCA = -2, 500 î N
(H) FCR=+2, 500 i N and FCA = +2, 500 î N
Transcribed Image Text:A truck is driving forward at a constant 8 m/s in the i direction for 10 s. During that time, the tires of the truck provides a forward force of 2, 500 i N. Assume that friction between the axle and car is negligible, at least compared to the air friction experienced by the truck. What is the force that the car exerts on the road, FCR, and what is the force that the car exerts on the air molecules, fcA, as it drives down the road? (A) FCR = -250 i N and FCA = -250 î N (B) FCR = -250 i N and FCA = +250 i N (C) FCR = +250 i N and FCA = -250 i N (D) FCR=+250i N and FCA = +250î N (E) FCR= -2,500 i N and FCA = -2, 500 î N (F) FCR = -2,500 i N and FCA = +2, 500 î N (G) FCR=+2, 500 i N and FCA = -2, 500 î N (H) FCR=+2, 500 i N and FCA = +2, 500 î N
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