Physics, 20.07.2019 03:30 faithyholcomb

1. what is the average acceleration of a subway train that speeds up from 9.6m/s to 12m/s in .8s on a straight track?
2. an acorn at rest falls from an oak tree. the acorn hits the ground with a velocity of 14.7m/s. how long did it take the acorn to land?
3. what force is necessary to accelerate a 1,250 kg car at a rate of 40m/s^2
4. the mass of a person that weighs 500 n is
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