Big Bang, what sort of instrument would it be best to use: gravity.
The force of attraction between any two objects in the universe is known as gravity or gravitational force.
The mass of the object and the square of the distance between them determine the force of attraction. The weakest known force in nature, it is by far. There are only two factors that matter when discussing the gravitational force between two objects: mass and distance.
The square of the distance between two things has an inverse relationship with the force of gravity, which depends directly on the masses of the two items. The best theories of string theory propose that gravity is so weak because, in contrast to other forces, it may enter and exit these extra dimensions. We only get to taste a tiny bit of gravity's tremendous power.
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Answer:
4 N
Explanation:
mass = 2 kg
acceleration = 2 m/s^2
Force = mass * acceleration
= 2 *2
= 4 N
The kinetic energy of an object is given by
KE = 0.5mv²
where m is the mass and v is the velocity.
To calculate the change in kinetic energy...
Initial KE:
KEi = 0.5mVi²
where Vi is the initial velocity.
Final KE:
KEf = 0.5mVf²
where Vf is the final velocity.
ΔKE = KEf - KEi
ΔKE = 0.5mVi² - 0.5mVf²
ΔKE = 0.5m(Vf²-Vi²)
Given values:
m = 16kg
Vi = 25m/s
Vf = 20m/s
Plug in the given values and solve for ΔKE:
ΔKE = 0.5×16×(20²-25²)
ΔKE = -1800J
