A 2000 kg hybrid car pushes a 4000 kg Jeep that has died on railroad tracks. If the wheels of the hybrid car push against the ground with 7350 N of force, what is the magnitude of the force between the hybrid car and the Jeep? Assume there is no rolling friction. 4.90×103 N 1.10×104 N 9.07×10-5 N 7.35×103 N
Question
A 2000 kg hybrid car pushes a 4000 kg Jeep that has died on railroad tracks. If the wheels of the hybrid car push against the ground with 7350 N of force, what is the magnitude of the force between the hybrid car and the Jeep? Assume there is no rolling friction. 4.90×103 N 1.10×104 N 9.07×10-5 N 7.35×103 N
Solution
The force with which the hybrid car pushes against the ground is equal to the force with which it pushes the Jeep. This is due to Newton's third law of motion, which states that for every action, there is an equal and opposite reaction. Therefore, the magnitude of the force between the hybrid car and the Jeep is 7350 N. So, the correct answer is 7.35×103 N.
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