A.\(9,7 \pm 0,3\left( {m/{s^2}} \right)\)
B.\(9,7 \pm 0,2\left( {m/{s^2}} \right)\)
C.\(9,8 \pm 0,2\left( {m/{s^2}} \right)\)
D.\(9,8 \pm 0,3\left( {m/{s^2}} \right)\)

A.\(0,4{\rm{s}}\)
B.\(1,2{\rm{s}}\)
C.\(0,25{\rm{s}}\)
D.\(0,6{\rm{s}}\)

A.\(\dfrac{a}{b}\)
B.\(1\)
C.\(\dfrac{b}{a}\)
D.\( - \dfrac{a}{b}\)

A.\(\dfrac{a}{b}\)
B.\(1\)
C.\(\dfrac{b}{a}\)
D.\( - \dfrac{a}{b}\)

A.\(1\)
B.\( - 1\)
C.\(\dfrac{1}{2}\)
D.\( - \dfrac{1}{2}\)

A.\(1\)
B.\(\dfrac{1}{2}\)
C.\(2\)
D.\(0\)

A.\(1\)
B.\(2\)
C.\(\dfrac{1}{2}\)
D.\( - \dfrac{1}{2}\)

A.\(1\)
B.\(\dfrac{1}{2}\)
C.\( - 1\)
D.\(0\)

A.\(0\)
B.\(1\)
C.\(-1\)
D.\(\dfrac{1}{2}\)

A.\(0\)
B.\(1\)
C.\(-1\)
D.\(\dfrac{1}{2}\)