Answer: The number of people that work in the white house are 200. If that is your question? If not just let me know and i will gladly help.
The drag force acting on the rocket is 80N.
<h3>Give an explanation of drag force?</h3>
The divergence in velocity between the fluid and the item, also known as drag, exerts a force on it. Between the liquid and the solid object, there should be motion. Drag is absent in the absence of motion.
The air molecules are more compressed (pushed together) on the surfaces that are facing the front while being more dispersed (spread out) on the surfaces facing the back. Turbulent flow, which occurs when air layers split from the surface and start to swirl, is what causes this.
The drag force acting on the rocket F = ma
Given,
m = 4kg, a = 20ftm/s²
Substituting m and a values in the above formula,
The drag force acting on the rocket F = 4×20
The drag force acting on the rocket F = 80N.
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I think it’s cannot be determined
Answer:
Option B (remain vertically under the plane) is the correct option.
Explanation:
- A flare would follow a particle trajectory with horizontal direction somewhat like airplane velocity as well as initial maximum motion as null but instead, gravity will induce acceleration. It would be lowered vertically underneath the plane before flare had already sunk to something like the surface.
- There is no different movement in the airplane nor even the flash. And none of them can change its horizontal level.
Some other alternatives are given really aren't linked to the specified scenario. So choice B is the perfect solution to that.
acceleration of car is 1.8 m/s^2
time = 14 s
initial speed = 14 m/s
so the final speed is calculated by
so the total distance moved in this interval of time is
now the average speed is given as
so the average speed will be 26.6 m/s
