Answer:
The maximum height reached by the water is 117.55 m.
Explanation:
Given;
initial velocity of the water, u = 48 m/s
at maximum height the final velocity will be zero, v = 0
the water is going upwards, i.e in the negative direction of gravity, g = -9.8 m/s².
The maximum height reached by the water is calculated as follows;
v² = u² + 2gh
where;
h is the maximum height reached by the water
0 = u² + 2gh
0 = (48)² + ( 2 x -9.8 x h)
0 = 2304 - 19.6h
19.6h = 2304
h = 2304 / 19.6
h = 117.55 m
Therefore, the maximum height reached by the water is 117.55 m.
Answer:
Im pretty sure 1 is gravity, 2 is force
Explanation:
I think it’s B because we aren’t looking for Vf
I'm pretty sure it's B
I hope that helps
As per the question there are two physical quantities i.e scalar quantity and vector quantity.
A scalar is a physical quantity which requires only magnitude.It does not require any direction for it's complete specification.For instance we may take distance travelled,speed etc.
Unlike a scalar quantity,a vector quantity requires both magnitude as well as direction for it's complete specifications.For instance we may take displacement which is the shortest distance between two points,the velocity which is the speed in a given direction.
Hence a vector and scalar is differentiated by direction.
As per the question,the correct option will be the third option i.e C.
Carlita is right.As per her, both vector and scalar have magnitude,but only vectors have direction which is also true.
