Multiple choice general knowledge science & technology

If a person is at rest (intial velocity(u)=0) at then pickups the velocity at 12m/sec and covers a distance of 8m then the acceleration of the person is?

  1. 1.12m/sec^2

  2. 12 m/sec^2

  3. 8 m/sec^2

  4. 9m/sec^2
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Using v^2 = u^2 + 2as: (12)^2 = 0^2 + 2(a)(8). This gives 144 = 16a, so a = 144/16 = 9 m/s^2. The person accelerates at 9 m/s^2.

Keep practicing — related questions