The correct answer to the question is : 7 m/s.
EXPLANATION:
As per the question, the apple is at a height h = 2.5 m.
The initial velocity of the apple u = 0
We are asked to calculate the final velocity [ v ] of the apple before touching the ground.
As the apple is falling under gravity, then the acceleration produced on the apple is nothing else than acceleration due to gravity.
Hence, acceleration a = g = ![9.8\ m/s^2](https://tex.z-dn.net/?f=9.8%5C%20m%2Fs%5E2)
From equation of kinematics , we know that -
![v^2-u^2\ =\ 2as](https://tex.z-dn.net/?f=v%5E2-u%5E2%5C%20%3D%5C%202as)
⇒ ![v^2=\ u^2+2gh](https://tex.z-dn.net/?f=v%5E2%3D%5C%20u%5E2%2B2gh)
⇒ ![v^2=\ 0^2+2\times 9.8\times 2.5](https://tex.z-dn.net/?f=v%5E2%3D%5C%200%5E2%2B2%5Ctimes%209.8%5Ctimes%202.5)
⇒ ![v^2=\ 49](https://tex.z-dn.net/?f=v%5E2%3D%5C%2049)
⇒ ![v=\ \sqrt{49}\ m/s](https://tex.z-dn.net/?f=v%3D%5C%20%5Csqrt%7B49%7D%5C%20m%2Fs)
⇒
[ans]
Hence, the final velocity is 7 m/s.
Answer:
25 m
Explanation:
The maximum acceleration that the load can withstand without slipping out of the truck occurs when the net force on the load is equal to the maximum frictional force, therefore:
![ma_{max} =-\mu N](https://tex.z-dn.net/?f=ma_%7Bmax%7D%20%3D-%5Cmu%20N)
where
m = 10,000 kg is the mass of the load
is the maximum acceleration
is the coefficient of friction
N is the reaction force of the truck on the load
Since the surface is horizontal, the reaction force is equal to the weight of the load,
, so from the previous equation we get
![a_{max} = -\mu g = -(0.400)(9.8)=-3.92 m/s^2](https://tex.z-dn.net/?f=a_%7Bmax%7D%20%3D%20-%5Cmu%20g%20%3D%20-%280.400%29%289.8%29%3D-3.92%20m%2Fs%5E2)
where the sign is negative since the direction of the acceleration is opposite to the motion of the truck.
At the maximum acceleration, the stopping distance of the truck is the minimum. Therefore, we can use the SUVAT equation:
![v^2-u^2 = 2a_{max} d](https://tex.z-dn.net/?f=v%5E2-u%5E2%20%3D%202a_%7Bmax%7D%20d)
where
v = 0 is the final velocity of the truck
u = 14.0 m/s is the initial velocity
d is the minimum stopping distance
Solving for d, we find
![d=\frac{-u^2}{2a_{max}}=\frac{-(14)^2}{2(-3.92)}=25 m](https://tex.z-dn.net/?f=d%3D%5Cfrac%7B-u%5E2%7D%7B2a_%7Bmax%7D%7D%3D%5Cfrac%7B-%2814%29%5E2%7D%7B2%28-3.92%29%7D%3D25%20m)
The lysosomes functions like a recycling center. The pH inside the lysosome is acidic around 5 due to the hydrogen ions and protons produced inside. These lysosomes contain hydrolase which is an enzyme which breaks down the molecular bonds in a chemical compound.This enzyme is active only in acidic conditions.
The angular speed is decreasing and direction of rotation clockwise of the rod immediately after time t.
<h3>
</h3><h3>What is angular speed ?</h3>
The rate of change of angular displacement is defined as angular speed. It is stated as follows:
ω = θ t
Where,
θ is the angle of rotation,
t is the time
ω is the angular velocity
The torque is found as;l
![\rm T = F \times r](https://tex.z-dn.net/?f=%5Crm%20%20T%20%3D%20F%20%5Ctimes%20r)
If the force is acting on the rod from the three point is the same, the value of the torque is depends upon the radius or the perpendicular distance.
The perpendicular distance of the right force is grater. Hence, the force acting on the right side is more, and the rod will rotate clockwise.
Both the forces are acting downwards. Thus, the resultant force is the less due to which the speed is increasing.
Hence, the angular speed is decreasing and direction of rotation clockwise of the rod immediately after time t.
To learn more about the angular speed, refer to the link;
brainly.com/question/9684874
#SPJ1
We will either die cause with no gravity then we cant breathe or we may die due to the fact were in space or maybe be frozen due to the fact we will be 500k feet up air