Here in such type of problems we will say that for the equilibrium of rod torque as well as net force must be balanced
So first we will use the torque balance on the rod about the hinge point
we know that length of the rod is L = 5 m
now by solving above
now we also know that
now by force balance in Y direction
now force balance in X direction
now the net reaction force is given as
Answer:
(a) K₁ = 2.205 J.
(b) K₂ = 5.733 J.
(c) K₂/K₁ = 2.6.
Explanation:
Kinetic Energy: This can be defined as the energy of a body in motion. The Unit of kinetic energy is J.
Mathematically kinetic energy can be represented as,
K = 1/2mv²
(a)
K₁ = 1/2m₁v₁²............................ Equation 1
Where K₁ = kinetic energy of the smaller bullet, m₁ = mass of the smaller bullet, v₁ = velocity of the smaller bullet.
<em>Given: m₁ = 2.5 g = 2.5/1000 = 0.0025 kg, v = 42 m/s.</em>
<em>Substituting these values into equation 1</em>
K₁ = 1/2(0.0025)(42)²
K₁ = 4.41/2
K₁ = 2.205 J.
(b)
K₂ = 1/2m₂v₂²............................. Equation 2
Where K₂ = kinetic energy of the heavier bullet, m₂ = mass of the heavier bullet, v₂ = velocity of the heavier bullet.
Given: m₂ = 6.5 g = 6.5/1000 = 0.0065 kg, v₂ = 42.0 m/s
Substituting into equation 2,
K₂ = 1/2(0.0065)(42)²
K₂ = 11.466/2
K₂ = 5.733 J.
(c)
The ratio: K₂/K₁ = 5.733/2.205
K₂/K₁ = 2.6.
It is dangerous to stand close to railroad tracks when a rapidly moving commuter train passes. Explain why atmospheric pressure would push you toward the moving train. Water pressure inside a hose nozzle can be less than atmospheric pressure due to the Bernoulli effect.
Pls brainliest!? :)
Answer:
Explanation:
1. The law that best illustrate this is Newton's first law of motion, which is also called the law of inertia
The law states that every object will continue in the sate of rest or in uniform motion except it is acted upon by an external force. The bike stop moving because it hits a curb.
Inertia: This is the reluctance or the tendency for a body to be in its state of rest or uniform motion.
And Maya is thrown into the air due to it inertia.
2. The Law that best illustrate this is Newton's Third law of motion.
This law states that to every action there is an equal and opposite reaction.
As the bird uses his wind to push air downward, air pushes upward on the bird allows it to fly. the upward and downward movement of air are both equal but opposite reaction.
3. The Law that illustrate this is Newton's second law of motion.
This law can be summarize as force is directly proportional to mass and acceleration.
Because the mass of the second box is smaller than the first box that was why its accelerate at a greater rate.
Answer:
The amount of energy absorbed by the substance and is generated by heat is called HEAT energy. Matter or arrangement or thermal