The time in flight is
from s= 1/2 g t^2
so t = square root ((2x20)/ 9.8)
t = 2 seconds.
This means the horizontal speed was 30 m/s
Answer: D
Explanation: Potential stores Kinetic Energy so, Point C will have Kinetic turned into Potential.
Answer:
Explanation:
Ask a question that can be answered by making observations.
Answer:
an ellipse with the Sun at one focus or D
Explanation:
Answer for edgenuity
Answer:
a= - 6.667 m/s²
Explanation:
Given that
The initial speed of the box ,u= 20 m/s
The final speed of the box ,v= 0 m/s
The distance cover by box ,s= 30 m
Lets take the acceleration of the box = a
We know that
v²= u ² + 2 a s
Now by putting the values in the above equation we get
0²=20² + 2 a x 30

a= - 6.667 m/s²
Negative sign indicates that velocity and acceleration are in opposite direction.
Therefore the acceleration of the box will be - 6.667 m/s² .