The index of refraction of light varies from color to color. True or False?
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Assuming north as positive direction, the initial and final velocities of the ball are:
(with negative sign since it is due south)
the time taken is
, so the average acceleration of the ball is given by
And the positive sign tells us the direction of the acceleration is north.
the time taken is
And the positive sign tells us the direction of the acceleration is north.
I assume the block plows into the bank of sand with a velocity of 6 m/s and comes to a stop in 2 s.
