Question

A racing car has a uniform acceleration of 10 ms-2. What will be its velocity if it covers a distance of 20 m after its start?

Answer 1

$acceleration=10m/s^{2} \\distance=20m\\initial velocity(u)=0\\final velocity(v)=?\\\\we know that,\\2as=v^{2} -u^{2} \\2*10*20=v^{2} -0^{2} \\\sqrt{400} = v\\v=20m/s$

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