Due tonight, stuck between b and d Which pair of graphs represent the correct relationship between position x and velocity v of a moving object?
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Well we can't see (B) in your picture, so we can't comment on it.

But ' D ' depicts a correct relationship between a position and a speed.

(And C doesn't.)

answer; (arch); good luck

0.3x0.21x0.08kg=mass 1 sheet

mass 500 = 500xmass 1

volume pile = 0.3x0.2x0.048

density=mass/volume= 500xmass 1/0.3x0.2x0.048

v patient student