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When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative
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What is the average speed of a car that travels 40 mph for 1 hour and 60 mph in another hour?
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Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative
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PLEASE HELP A car accelerates from rest at 2.92 m/s2 What is the velocity at the end of 5.1 s? Answe...
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