The sum of final and initial velocity is 17. Acceleration is 10m/s^2 and displacement is .85 m. Find initial and final velocity.

Question

Lakshmi Warrier · Answer

From my observation, i think time is also neede to answer this qn... By the way, is this an mcq? Given, v+u=17 -----(1) (v-u)/t=10ms -2 v-u=10ms -2 * t seconds = 10t m/s ----- (2) Solve 1 and 2 v=(17+10t)/2 Substitute in (1) (17+10t)/2 +u = 17 17+10t+2u= 34 10t + 2u=17 u = (17- 10t)/2 Substitue in (1) v+17+10t =17 v+10t=0 v= -10t this is why i said if t was there, answer would be accurate and if anyone knows it more perfect, pls write that too

anjace · Answer

we know that v+u=17; u=17-v using 3 eq of motion v^2-u^2=2as by putting value of v in this equation we get v therefore, v=9and u=8; thnx if it is right tell me

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The sum of final and initial velocity is 17. Acceleration is 10m/s^2 and displacement is .85 m. Find initial and final velocity.

The sum of final and initial velocity is 17. Acceleration is 10m/s^2 and displacement is .85 m. Find initial and final velocity.

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