If you double velocity the speed increases by [itex] sqrt(2) [/itex]
You go twice as fast? The momentum is doubled? The KE is multiplied by four? OK, none of that works under some specific conditions. For example, if the initial velocity is zero, none of the above happens.
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When an object undergoes acceleration, it is the velocity that increases. Acceleration is the rate of change of velocity, so an object experiencing acceleration will have its velocity change over time, either by speeding up, slowing down, or changing direction.
If mass is doubled while velocity remains constant, the kinetic energy will also double since kinetic energy is directly proportional to the mass. This is because kinetic energy is calculated using the formula KE = 0.5 * mass * velocity^2.
Double Replacement
When the speed of an object is doubled, its kinetic energy increases by a factor of four. This is because kinetic energy is proportional to the square of the velocity. Therefore, doubling the speed results in four times the kinetic energy.
Its value grows to become precisely equal to double its initial value, while its direction remains unchanged.
if velocity increases, so does momentum. and vice versa momentum = mass x velocity increasing mass or velocity or both will increase momentum
"Acceleration" implies that the velocity changes.
The velocity increases at a constant rate.
as you decrease the velocity of a car, you decrease the kinetic energy.
momentum is mass x velocity so if we double v then momentum becomes 2 times greater or double also
velocity decrease and at last it becomes zero.
Kinetic Energy = (1/2)*(mass)*(velocity)2 If you double the mass, then the kinetic energy will double If you double the velocity, the kinetic energy will increase by a factor of 4
If the acceleration changes, the velocity of an object will also change. If the acceleration increases, the velocity will increase. If the acceleration decreases, the velocity will decrease. The velocity and acceleration of an object are directly related.
The velocity stays the same, it is constant
The velocity changes. called acceleration.
When velocity doubles, the momentum also doubles because momentum is directly proportional to velocity in a linear relationship. Momentum is equal to mass multiplied by velocity, so when velocity doubles, momentum will also double as long as the mass remains constant.