The metre is defined as the distance travelled by ligh in `(1)/(299,792,458)` second. Why didn't people choose some easier number such as `(1)/(300.000.000)` second?

Light travels with a speed of 3xx10^(8) m s^(-1) . The distance travelled by light in 1 femto second is

A freely falling body travelled x m in n^("th") second. Then distance travelled in n-1^("th") second is

The speed of a car increases uniformly from zero to 10ms^-1 in 2s and then remains constant (figure) a. Find the distance travelled by the car in the first two seconds. b. Find the distance travelled by the car in the next two seconds. c. Find the total distance travelled in 4s .

Figure here gives the speed-time graph for a body. The displacement travelled between t = 1.0 second and t = 7.0 second is nearest to

Use integeration technique to prove that the distance travelled in nth second: s_nth=u+frac(a)(2)(2n-1)

The distance travelled s in metres by a particle in t second is given by s=t^(3)+2t^(2)+t . The speed of the particle after 1s will be