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k0ka [10]
2 years ago
9

A 500kg car is driven forward with a thrust force of 1500N. Air resistance and friction acts against the motion of the car with

magnitude 200N and 300N respectively. What is the acceleration of the car?
Physics
1 answer:
Wittaler [7]2 years ago
8 0
2m/s^2, this is because F=ma, meaning a is also equal to F/m. The car applies 1500N in one direction and outside sources apply a total of -500N, meaning the 500kg car is moving forward with a total of 1000N of force. Taking the total 1000N and dividing it by 500kg gives you and acceleration of 2m/s^2. Hope this helps!
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Which of two factors influence the weight of an object due to gravitational pull?
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A person pushes a refrigerator across a horizontal floor. The mass of the refrigerator is 110 kg, the coefficient of static fric
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Answer:

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coefficient of static friction, μs = 0.85

coefficient of kinetic friction, μk = 0.59

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Answer:

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The equation that describes the change of velocities is:

v_f=v_o+at

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vf  = final speed

t    = time

Solving the equation [for a:

\displaystyle a=\frac{v_f-v_o}{t}

The car accelerates from vo=0 to vf=60 mph in t=7.9 s, thus the acceleration is:

\displaystyle a=\frac{60 \ mph-0}{7.9}

a = 7.6\ mph/s

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