Question

Find the time taken for a car to travel 98m if it start from rest and accelerate at 4.00 m/s

Answer 1

Question #63360, Physics / Mechanics | Relativity | for completion

Task: Find the time taken for a car to travel 98m if it starts from rest and accelerates at 4.00 m/s

Answer:

$$\begin{array}{l} S = 98\,\mathrm{m} \\ a = 4\,\mathrm{m/s^2} \\ v_0 = 0\,\mathrm{m/s} \\ t - ? \\ S = v_0 * t + a * t^2 / 2 \\ S = a * t^2 / 2 \\ t = \sqrt[2]{2 * s / a} \\ \end{array}$$ $$t = 7\,\mathrm{s}$$

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