ALWAYS use significant figure rules. Remember that these rules apply to all numbers that are measurements.
In working this problem, assume the value of "g" to be 9.8 m/s2 with two (2) significant digits unless otherwise stated.
A car traveling at 60 mph has how much more energy than a car going at 20 mph?
How many times does the kinetic energy of a car increase when traveling 60 mph as opposed to traveling 30 mph?
K. E. increases times.
2
4
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