friends इसमें यह बताइए कि इसे किस प्रकार सॉल्व किया गया है lअर्थात 2.5 आंसर कैसे आया ??
if u don't know or not understand then not give answer
Answers
Answer:
Listen dear, here it is given u+v /2
u=0
v=5
0+5=5
5/2=2.5
I hope now you got it...
Here Is ur answer :)
I think u want to know : how the formula u+v/2 exist
It's very simple
How does average velocity come to be (u+v)/2?
Average velocity comes to be (u+v)/2, only when velocity is changing uniformly i.e. acceleration is constant or uniform. If velocity does not change uniformly, the average velocity will not be (u+v)/2.
This can be understood by another example. Suppose we have a sequence of numbers; 1,2,3,4,5. Obviously the middle or average value is 3 which is equal to (1+5)/2. Now let us consider another sequence, 1,2,4,7,11. Now the middle value is 4 but it is not equal to (1+11)/2. The reason is simple, in the first sequence the numbers were increasing by a constant rate; 1 at a time but in the second sequence the increase is not uniform (first 1, then 2, then 3 and so on).
So, if initial and final velocities are u and v respectively then average velocity will be (u+v)/2 only in the case of uniformly accelerated motion.
Given =》 Initial velocity (u) = 0m/s‐¹
Final velocity (v) = 5 m/s‐¹