1 inch = 2.54 cm
so multiply 27 by 2.54
27 x 2.54 = 68.58 cm long
3+4
that is one of em but you did not provide me with an image so i cant really answer but give u a simple equation like that one on top.
Answer:
The second one and the fourth one :)
We have,
t = 6.21 s
s = 111 m
u = 0 m/s
To determine: "a" of the particle.
We know,
s = ut + ½ at²
⇒ s = ½ at²
⇒ a = 2s/t²
⇒ a = [2(111 m)]/(6.21 s)²
⇒ a = (222 m)/(38.5641 s²)
⇒ a ≈ 5.75 m/s²