Question

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

Answer 1

Given

a = 2m/s^2

u = 10m/s

t = 2s

we know that

v = u + at

v = 10 + 2*2

v = 14 m/s

Answer 2

Given :

• An object moves along a straight line with an acceleration of 2 m/s². If its initial speed is 10 m/s.

　

To find :

• What will be its speed 2 seconds later?

　

Using formula :

• First equation of motion.

★ Final velocity = Initial velocity + Acceleration × Time.

　

Calculations :

→ v = u + at

→ v = 10 + 2 (2)

→ v = 10 + 4

→ v = 14 m/s

　

Therefore, the speed after 2 seconds is 14 m/s.