Answer:
4.45 m/s
Step-by-step explanation:
Vertical distance, Sy = 5m
The speed of pebble when they hit her window :
Vx = Sx / t
We can obtain t using the relation :
Sy = 1/2 * at²
Where, a = acceleration due to gravity = 9.8m/s²
We can obtain t
5 = 1/2 * 9.8 * t²
5 = 4.9t²
t = √5/4.9
t = 1.01 seconds
Hence,
Speed, Vx = Sx / t
Vx = 4.5 / 1.01
Vx = 4.45 m/s
125 135 145 155 165 175 185 195 205 220 235 245= 11 weeks
Answer:4.2
Step-by-step explanation:
Answer:
Step-by-step explanation:
The edges of length and width of a piece of printer paper perpendicularly intersect each other.
=> Perpendicular Lines are those making an angle of 90 degrees with each other.
Because of communicative properties, it won't matter what way you put it bevause it's still "2" and '5"