A body accelerates from rest for time t 1 at a constant rate α for distance x then it decelerates at constant rate β for time t 2 and covers distance y in this time and come at rest If all quantities are in SI units, then match the following columns :
Column-I | Column-II |
(i) x/y | [A] t1/t2 |
(ii) α/β | [B] t2/t1 |
(iii) average speed for whole journey | [C] |
(iv) maximum speed attained in it whole journey | [D] |
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION
Ans.
(i) [A]
(ii) [B]
(iii) [D]
(iv) [C]
Sol. 
= α and 
= β
also x + y = 
× v m × (t 1 + t 2 )
∴ (x + y) = 
× v m × 
⇒ v m = 
Now, v av = 
= 
= 
. 
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