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Which would require the least force to stop? Why? a. A car travelling at 120 km/hr. b. A car travelling at 80 km/hr. c. A car travelling at 60 km/hr. d. A car travelling at 10 km/hr.

Sagot :

The car traveling at 10 kilometers per hour because it covers the least distance over the same amount of time as the others. Because of this, it has the least momentum, and would therefore require the least force to stop.