Question

15) A certain force exerted for 1.2 S raises the speed of an object from 1.8 m/s to 4.2 m/s. Find
its acceleration. If the mass of the object is 5.5 kg, calculate the force applied.​

Answer 1

Answer:

In this case

Given that

initial : 1.8m/s

final : 4.2m/s

acceleration : change in velocity /time

that is a 4.2-1.8/1.2

a: 2m/s

force : mass * acceleration

force =5.5. *2

f = 11 netwon (kg.m/s)

thank u