What would a velocity of a rock dropped from a cliff be after falling for 6 seconds? A. 58.8m/s
B. 1.6m/s
C. 12m/s
D. 30m/s

  A. 58.8m/s

Explanation:

The acceleration due to gravity is 9.8 m/s², so the velocity after 6 seconds is ...

  v = at

  v = (9.8 m/s²)(6 s) = 58.8 m/s

its a 5.5 n

glad that

answer: 2×10^-2kg

explanation: density= mass per volume

vol=mass/density

converting to s.i units we have;

3÷1000kg = 0.003

1.5÷100m = 0.15

0.003/0.15 = 0.02kg