Go forwards 50m, then backwards 50m. You have travelled 100m, but your displacement is 0.
Answer:
There is an entity to which we have given the name dark energy which contributes to the total density but which we cannot detect by the usual methods.
If acceleration is constant we calculate it from the formula:
a=
v=36
t=5s
We convert units:
t=5s=
h
a=
=432
=0,033333333333333
Answer:
Explanation:
Horizontal displacement
x = 120 t
Vertical position
y = 3610 - 4.9 t²
y = 0 for the ground
0 = 3610 - 4.9 t²
t = 27.14 s
This is the time it will take to reach the ground .
During this period , horizontal displacement
x = 120 x 27.14 m
= 3256.8 m
So packet should be released 3256.8 m before the target.
<span>The gravitational force is 10 N down, and the force of air resistance is 1 N up.
The 1 N up exactly cancels one of the 10 N down.
What's left is the net force on the ball . . . . . 9 N down.</span>