Answer:
The height above the top of the window is 1.44 m
Explanation:
Given;
time of motion, t = 0.32 s
height traveled at the given time, h = 2.2m
determine the initial velocity of the stone;
h = ut + ¹/₂gt²
2.2 = u(0.32) + ¹/₂ x 9.8 x 0.32²
2.2 = 0.32u + 0.502
0.32u = 2.2 - 0.502
0.32u = 1.698
u = 1.698 / 0.32
u = 5.31 m/s
This initial velocity on top of the window becomes the final velocity from the height above the window.
v² = u² + 2gh
where;
u is the initial velocity of the stone from the height above the window;
5.31² = 0 + (2 x 9.8)h
19.6h = 28.196
h = 28.196/19.6
h = 1.44 m
Therefore, the height above the top of the window is 1.44 m
10/2= 5/1 or just 5
16/4=4/1 or just 4
I don’t speak Spanish sorry but I wish I could help you
Answer:
Part a)
Part b)
Part c)
Explanation:
As we know that car start from rest and reach to final speed of 87 mph
so we have
now we have
Part a)
acceleration is rate of change in velocity
Part b)
distance moved by car with uniform acceleration is given as
Part c)
As we know that the car start from rest
so final speed after t = 10 s
