Divide the distance traveled by the time it took:
(100 m) / (4.2 s) ≈ 23.8 m/s
Answer:
A compass works by detecting and responding to the Earth's natural magnetic fields. The Earth has an iron core that is part liquid and part solid crystal, due to gravitational pressure. It is believed that movement in the liquid outer core is what produces the Earth's magnetic field.
Explanation:
Answer:
Part a)
Velocity = 6.9 m/s
Part b)
Position = (3.6 m, 5.175 m)
Explanation:
Initial position of the particle is ORIGIN
also it initial speed is along +X direction given as

now the acceleration is given as

when particle reaches to its maximum x coordinate then its velocity in x direction will become zero
so we will have



Part a)
the velocity of the particle at this moment in Y direction is given as



Part b)
X coordinate of the particle at this time



Y coordinate of the particle at this time



so position is given as (3.6 m, 5.175 m)
- Total displacement=825m
- Total Time=118s
Average Velocity=Total Displacement/Total Time


Seriously... B the other options are rediculous