Answer:
1.
2.
3.
Explanation:
The velocity vector is
1. The position vector can be found by integrating the velocity vector.
At t = 0, the bird is at the origin, so the integration constants can be determined.
Therefore, C1 and C2 are equal to zero.
2. The acceleration vector is the derivative of the velocity vector with respect to time.
3. We will first find the time when the x-component of the position vector is equal to zero.
We will plug in this value into the y-component of the position vector.
Answer:
m = 4
Explanation:
We have,
You apply a force of 600 N to the branch which acts as a lever. It means it is input force, IF = 600 N
The rear of the truck weighs 2,400 N. It means it is output force, OF = 2400 N
The ratio of output force to the input force is equal to the mechanical advantage of the lever arm. It is given by :
So, the mechanical gain of the lever arm is 4.
First of all the project motion is in the form of a parabolic path and it is a common practice that a paper airplane always follow a parabolic path, whenever it is thrown in the air, and gravity is acting upon the plane, like any other projectile.