Brainliest please help

tell me if am right
if not correct me

please

See the answers below

Explanation:

To solve this problem we must use the following equation of kinematics.

where:

Vf = final velocity [m/s]

Vo = initial velocity [m/s]

a = acceleration [m/s²]

t = time [s]

First case

Vf = 6 [m/s]

Vo = 2 [m/s]

t = 2 [s]

Second case

Vf = 25 [m/s]

Vo = 5 [m/s]

a = 2 [m/s²]

Third case

Vo =4 [m/s]

a = 10 [m/s²]

t = 2 [s]

Fourth Case

Vf = final velocity [m/s]

Vo = initial velocity [m/s]

a = acceleration [m/s²]

t = time [s]

Fifth case

Vf = final velocity [m/s]

Vo = initial velocity [m/s]

a = acceleration [m/s²]

t = time [s]

friction

explanation:

they us to move forward and backwards