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`        a projectile is fired vertically upwards with an intial velocity u.after an time interval of T seconds projectile is fired vertically upwards,also with intial velocity u.at what time they meet? `
4 years ago

Nicho priyatham
625 Points
```							do u mean an other projectile is also fired if so then the ans is 	first wright  finial position  equation for partical 1 as function of t            s1=ut+ -(1/2)gt2	do the same for second partical               s2=u(t-T)-(1/2)g(t-T)2 where t>(or equal)Tnow wn they meet s1=s2so  solving both the equations we get ut -(1/2)gt2  = u(t-T)-(1/2)g(t-T)2 no further solving we get t=(T/2)+(u/g)sorry the queation is not clear u didnt mention wn to count time from whether 4m time of projection of 1st partical or that of 2nd patical if we count time from t=0 we get ans as (T/2)+(u/g)PLZ approve if correct and in case of any doubts put in ans dox  `
```
4 years ago
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