A Driver, Traveling at 22 M/s, Slows Down Her 2000 $- 2.2 \times 10 ^ { 4 } \mathrm {~J}$

A driver, traveling at 22 m/s, slows down her 2000 kg truck to stop for a red light. What work is done on the truck by the friction force of the road?

A) $- 2.2 \times 10 ^ { 4 } \mathrm {~J}$
B) $- 9.7 \times 10 ^ { 5 } \mathrm {~J}$
C) $- 4.4 \times 10 ^ { 4 } J$
D) $- 4.8 \times 10 ^ { 5 } J$

Correct Answer:

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