Comes in pairs
Just like in Newton’s 3rd law, there is always an equal and opposite force
Answer:
88.89 cm/s or 0.89 m/s.
Explanation:
The following data were obtained from the question:
Initial velocity (u) = 0 cm/s
Distance travelled (s) = 120 cm
Time (t) = 2.7 s
Final velocity (v) =.?
The final velocity of the marble can be obtained as follow:
s = ½(v + u)t
120 = ½ × (v + 0) × 2.7
120 = (v + 0) × 1.35
120 = 1.35v + 0
120 = 1.35v
Divide both side by 1.35
v = 120/1.35
v = 88.89 cm/s
We may want to express the velocity in m/s. This can be obtained as follow:
100 cm/s = 1 m/s
Therefore,
88.89 cm/s = 88.89 cm/s × 1 m/s /100 cm/s
88.89 cm/s = 0.8889 m/s
88.89 cm/s = 0.89 m/s
Thus, the marble's final velocity is 88.89 cm/s or 0.89 m/s
Answer:
0.53 kg
Explanation:
Mass =
Force (also weight) = 8.0N
Acceleration = 15.0
=
= 0.53 kg ( to 2 decimal place )
Answer:
south of east
Explanation:
= 3 m/s
= north of east
= 6 m/s
= south of east = north of east
x and y component of
x and y component of
Magnitude
Direction
The magnitude of the change in velocity vector is and the direction is south of east.