Answer:
Energy cannot be created or destroyed.
Explanation:
its in the name, law of "conservation" of energy. energy can only change forms not be destroyed
Answer:
P = 0
Explanation:
Momentum is defined as the quentity of motion contained in a body. Mathematically, it can be defined as the product of mass and velocity. So, in order to determine the Volkswagen Beetle, at rest, we can use the simple formula, as follows:
where,
P = Momentum of Volkswagen Beetle = ?
m = Mass of Volkswagen Beetle = 750 kg
v = Velocity of Volkswagen Beetle = 0 m/s (since, it is at rest)
Therefore,
P =
Answer:The factors which are used to calculate the kinetic energy of an object are mass and velocity. Explanation: The kinetic energy is the energy of the motion of an object. Here, m is the mass of the object and v is the velocity of the object.
Explanation:
hope it helps
If you double the velocity you would have to halve the magnetic field strength to keep the force on the particle the same and hence the trajectory.
F = qvB
Answer:
Velocity of Sedan = 21 m/s
Velocity of SUV = 12 m/s
Explanation:
As we know that deceleration due to friction force is given as
so we have
now the two cars comes to rest at a point which is at position of 5.39 m West and 6.43 m South
so net displacement of the car is given as
now the velocity of the two cars just after the impact is given as
direction of the motion is given as
South of West
now we can use momentum conservation as there is no external force on it
Momentum conservation in North to south direction
Similarly momentum conservation towards West direction
