Question

A certain force exerted for 1.2 s raises the speed of an object from
1.8 m/s to 4.2 m/s. Later the same force is applied for 2s. How
much does the speed change in 2s.​

Answer 1

Answer:

6m/s

Explanation:

i should it be helpful for you

Answer 2

The answer is in the following pic, Hope it helps:)