a car has a mass of 1000kg and accelerates at 2 meters per second per second. what is the magnitude of the net force exerted on the car.

2000N

Explanation:

Given parameters:

Mass of the car  = 1000kg

Acceleration  = 2m/s²  

Unknown:

The net force exerted on the car  = ?

Solution:

From newtons second law of motion;

     F =  mxa

F is the net force

m is the mass

a is the acceleration

       F = 1000 x 2 = 2000N

c)as speed changes, wavelength and frequency change.

everything changes!

the correct choice is a .

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