Solution 19.4a
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(New page: As the intercept is 0 and the gradient is <math>\frac{8000}{20}=400</math> , using the equation for a straight line, the force at a time <math>t</math> is given by: <math>F=400t+0=400t<...)
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As the intercept is 0 and the gradient is \displaystyle \frac{8000}{20}=400 , using the equation for a straight line, the force at a time \displaystyle t is given by:
\displaystyle F=400t+0=400t
As the mass is 1000 kg, using Newtons's second law, the acceleration is given by:
\displaystyle a=\frac{F}{1000}=\frac{400t}{1000}=\frac{2t}{5}
