A body of mass \(5 kg\) starts from rest and is acted upon by a force \(100 N\), the acceleration in \(ms ^{2}\) and final velocity after 10secs will be
A. \(20 ms ^{2}, 20 ms 1\) B. \(25 ms ^{2}, 250 ms \) C. \(20 ms ^{2} 200 ms ^{4}\) D. \(10 ms ^{2} 300 ms ^{-4}\)
Correct Answer: C
Explanation
\begin{aligned} & Ft = mv - mu \\ & Ft = m ( v - u ) \\ &100 \times 10=5( v -0) \\ &1000=5 v \\ & V =200 m / s \\ & V = u - at \end{aligned}
\begin{aligned} &200=0-\text { mass } \\ &a=20 m / s ^{2} \quad \text { } \end{aligned}
