Question

A ball is rolling down a hill at +2.0 m/s. the ball is uniformly accelerating at 4.0 m/s^2. what will the balls velocity be 3.0 s later?

a. 10
b. 5.3
c. 14
d. 13

Answer 1

the answer would be c, 14

Answer 2

Here, You need to apply first equation of Kinematics,
v = u + at
Here, u = 2 m/s
a = 4 m/s²
t = 3 s

Substitute their values,
v = 2 + 4*3
v = 2 + 12
v = 14 m/s

In short, Your Answer would be Option C

Hope this helps!