The acceleration of gravity on Earth is 9.8 m/s² . The speed of a falling object keeps increasing smoothly, in such a way that the speed is always 9.8 m/s faster than it was one second earlier.
If you 'drop' the penny, then it starts out with zero speed. If you also start the clock at the same instant, then
After 1.10 sec, Speed = (1.10 x 9.8) = 10.78 meters/sec
After 1.85 sec, Speed = (1.85 x 9.8) = 18.13 meters/sec
But you want this second one given in a different unit of speed. OK then:
= (18.13 meter/sec) x (3,600 sec/hr) x (1 mile/1609.344 meter)
We did notice that in an apparent effort to make the question sound more erudite and sophisticated, you decided to phrase it in terms of 'velocity'. We can answer it in those terms, if we ASSUME that there is no wind, and the penny therefore doesn't acquire any horizontal component of motion on its way down.
With that assumption in force, we are able to state unequivocally and without fear of contradiction that each 'speed' described above ... with the word 'downward' appended to it ... does become a 'velocity'.
A lean body mass that the cholesterol level in the body is low and that the excess fats in the body are getting rid off as much as one can. In this case, the exercises A.) cardiorespiratory fitness such as jogging and <span>C.) muscular strength and endurance such as body building, abs routines are employed. Answer is D. both A and C.</span>
