Aparticular car engine produces a frequency of 250 hz. a student listening to the engine of the car hears a frequency of 880 hz. describe the motion of the car relative to the student.

Explanation:

given,

car engine produce frequency of = 250 Hz

student is listening frequency of = 880 Hz

speed of sound = 343 m/s

velocity of student = 0 m/s (at rest)

motion of car relative to student = ?

using formula

answer; ///i believe that the correct answer is (carbon); good luck

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.