I think this is the qoestion on projectile motion. If air resisance is neglected, final velocity is equal to initial velocity. It will never become zero throughout the time of flight. if air resistance is included, final velocity will be less than initial one.
1/2+1/6+1/12+1/20+.....+1/9900
note that the numbers 2,6,12,20,...,9900 are of the form n(n+1)
so, nth term Tn = 1/n(n+1)
= 1/n - 1/(n+1)
so, the series is 1/1-1/2+1/2-1/3+1/3-1/4+....-1/99+1/99-1/100
= 1 - 1/100
= 99/100
Hi friends! I was reading a book in which it was mentioned that the speed of light does not changes if we move towards its source or move away from it. Now the question comes in my mind as follows;
suppose a space shuttle is moving in space with velocity almost equal to that of...