Which diagram correctly describes the changes that occur as a small piece of rock falls from space and hits the Earth?

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

do you mean add both of the equations together

because if you do the answer is 10x-5

step-by-step explanation:

126 maybe. sorry