KVPY2017PhysicsMathematics in Physics
The distance s travelled by a particle in time t is s = ut - 1 2 gt ² The initial velocity of the particle was measured to be u =1.11 0.01 ~m / s and the time interval of the experiment was t =1.01 0.1 ~s . The acceleration was taken to be g =9.8 0.1 ~m / s ² . With these measurements, the student estimates the total distance travelled. How should the student report the result ?
Options
- A1.121 0.1 ~m
- B1.1 0.1 ~m
- C1.12 0.07 ~m
- D1.1 0.07 ~m
Correct answer
B. 1.1 0.1 ~m
Step-by-step solution
This question is related to significant numbers as in the question it is asked how student REPORT the result. On analysis the values of u , t and g the reported result must have three significant number. Hence correct answer is [B]