Answer:
C. -15m/s
Explanation:
using formula, v = u + at
where v = final velocity
u = initial velocity = 0
a = acceleration = -3m/s/s
t = time = 5sec
=> v = 0 + -3×5 = -15m/s
d
d because the sun is in the center and everything else surrounds it
A
Has to be a solid
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Net displacement = 0
Distance traveled = 2PQ <_up and down
