If a car is traveling at 15 mph and increases to a speed of 45 mph in 10 seconds, what is the acceleration? A. 30 mph B. 3 mph C. 3 mph/s D. 30 mph/s

The acceleration will be "3 mph/s".

According to the question,

Final velocity,

Initial velocity,

Time,

As we know the formula,

→

By substituting the values, we get

→                      

→                      

→                        

Thus above answer is right.

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i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

0.3x0.21x0.08kg=mass 1 sheet

mass 500 = 500xmass 1

volume pile = 0.3x0.2x0.048

density=mass/volume= 500xmass 1/0.3x0.2x0.048

v patient student