Question

Please help!! Also please explain if possible...

Answer 1

This is third equation of motion. As there is no values given, I assume you just have to keep variable 'a' (representing acceleration) on one side of the equation and all other variables on the other side.

`v_(f)^(2)= v_(o)^(2)+2a(x_(f)-x_(o))`

`v_(f)^(2)- v_(o)^(2)=2a(x_(f)-x_(o))`

`(v_(f)^(2)- v_(o)^(2))/(2(x_(f)-x_(o)))=a`

OR

`a=(v_(f)^(2)- v_(o)^(2))/(2(x_(f)-x_(o)))`

Here,
`v_(o)` is initial velocity,

`v_(f)` is final velocity ,

`x_(o)` is initial position,

`x_(f)` is final position, and

a is acceleration.