Velocity decreases on a constant impulse, as impulse is equal to the change in momentum. When a force is applied for a certain amount of time, it results in a change in momentum which causes the velocity to decrease at a constant rate.
If a constant force is applied for double the amount of time, the impulse applied will also double. Impulse is equal to force multiplied by time, so if either the force or the time doubles, the impulse will also double.
If the force on ball A doubles while the time remains constant, the impulse experienced by the ball will also double. Impulse is directly proportional to the force applied, so an increase in force will result in a proportional increase in impulse.
Not necessarily. Impulse Fdt=change in momentum which could be written as mdv (constant mass, velocity changing) or dmv (changing mass, constant velocity - the so-called conveyor belt problem. Imagine a hopper filled with (say) coal is feeding the coal on to a conveyor belt. The mass of the belt increases with time, so a force has to be applied to it to keep it moving at constant velocity.
No, constant velocity means there is no change in velocity over time. Impulse is the change in momentum, given by the force applied over a period of time. Momentum is mass times velocity, a vector quantity.
The impulse will be doubled. Impulse is the product of force and time, so doubling the time while keeping the force constant will result in a doubling of impulse.
...pressure decreases.
...pressure decreases.
constant, restraint, dependability
If demand decreases and supply is constant, the price will increase.
...pressure decreases.
If a constant force is applied for double the amount of time, the impulse applied will also double. Impulse is equal to force multiplied by time, so if either the force or the time doubles, the impulse will also double.
If the force on ball A doubles while the time remains constant, the impulse experienced by the ball will also double. Impulse is directly proportional to the force applied, so an increase in force will result in a proportional increase in impulse.
The rate constant decreases.
The value of an impulse is the change in momentum. If the mass remains constant it is the mass times the change in velocity.
Not necessarily. Impulse Fdt=change in momentum which could be written as mdv (constant mass, velocity changing) or dmv (changing mass, constant velocity - the so-called conveyor belt problem. Imagine a hopper filled with (say) coal is feeding the coal on to a conveyor belt. The mass of the belt increases with time, so a force has to be applied to it to keep it moving at constant velocity.
The rate constant decreases.
No, constant velocity means there is no change in velocity over time. Impulse is the change in momentum, given by the force applied over a period of time. Momentum is mass times velocity, a vector quantity.