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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What is magnetic flux? explain faraday's law of induction.

James is trying to prove newton's 2nd law of motion. he tries to move four different objects with different masses, shapes, and sizes from point a to point b. the objects are a toy car, a car, a refrigerator, and a kitchen table. after some experimentation, he finds that force is dependent on the mass of the object, rather than it's size or shape. the object that takes the most force to move is the

2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it