Question

L. An object moves along a straight line with an
acceleration of 2 m/s?. If its initial speed is 10 m/s,
what will be its speed 5 s later?
​

Answer 1

U=10m/s

a=2m/s^2

t=5 s

v=u+at

v=10+2x5

v=10+10

v=20m/s

Answer 2

GIVEN

Intial Speed(u)=10 m/s

Acceleration (a)=2 m/s²

Time(t)=5 s

Final Velocity after 5 seconds=v

According to Equation of Motion

Final Velocity=Intial Velocity+acceleration×time

v=u+at

Putting Value

v=10+2×5

v=10+10

v=20 m/s

Speed After 5 seconds=20 m/s

Acceleration

It can be defined as change in Velocity or speed per second or hour

Like here given acceleration=2m/s²

Means every Second Speed in Increasing by 2m/s.