Water enters a 2.00-m3 tank at a rate of 6.00 kg/s and is withdrawn at a rate of 3.00 kg/s. the tank is initially half full. (a) is this process continuous, batch, or semibatch? is it transient or steady state? (b) write a mass balance for the process (see example 4.2-1). identify the terms of the general balance equation (equation 4.2-1) present in your equation and state the reason for omitting any terms. (c) how long will the tank take to overflow?

c the car's velocity increases constantly over time.

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i don't know that i agree with that but what's the question ?

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.