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waverider
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I know that F=ma which give the units of kg.m/s/s (in SI units) but can force also be expressed as mass flow rate times velocity which also has the same units? Example: water coming out a hose or gas coming out a spray can?
waverider said:I know that F=ma which give the units of kg.m/s/s (in SI units) but can force also be expressed as mass flow rate times velocity which also has the same units? Example: water coming out a hose or gas coming out a spray can?
waverider said:Thanks. So for water flowing through a pipe (kg/s) at constant velocity, what does the force calculated by m(dot).v represent? is it the frictional force on the pipe?
Thanks, a real life example makes it easier to visualizeboneh3ad said:It would be the force experienced by, say a plate that goes sprayed by that water stream if all of the water from that stream was then deflected sideways when it hits the plate, for example.
waverider said:Thanks, a real life example makes it easier to visualize
I wounder if F=m(dot).v could be applied to a spray can that is spraying gas at the rate of m(dot) and gas velocity v, would the nozzle experience a force, (disregarding the air pressure and friction) ?
Yes, according to the basic equation of force (F=ma), force can be expressed as the product of mass flow rate (m) and velocity (v).
Mass flow rate is calculated by dividing the mass of a substance flowing per unit of time (m) by the time it takes to flow (t). It is expressed in units of mass per unit time, such as kilograms per second or pounds per hour.
Velocity is a measure of the speed and direction of an object's motion. In the context of force, it is used to calculate the impact of an object's motion on the amount of force exerted. The faster an object moves, the greater the force it can exert.
Yes, force can be expressed as the product of mass (m) and acceleration (a). This is known as the fundamental equation of force (F=ma) and is used to calculate the force required to accelerate a mass at a certain rate.
Force is related to mass and velocity through the equation F=mv, where m represents mass and v represents velocity. This equation shows that force is directly proportional to both mass and velocity, meaning that an increase in either of these factors will result in a greater force.