A 7.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.700 m by a large spring bumper at the end of its track. What is the force constant k of the spring? ___________________ N/m
A 7.00 ✕ 105 kg subway train is brought to a stop from a speed of 0.500 m/s in 0.700 m by a large
spring bumper at the end of its track. What is the force constant k of the spring?
___________________ N/m
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