Suggested Answer
This took me a short while to figure out, but I am still not entirely sure if this is correct, this is just from my basic understanding of Newtons Second Law of Motion.You have a 4kg cart with a force of 20N acting on it.The formula for working out the acceleration is.a=Fnet÷massSubstitute in the information.a=20N÷4kgNow you solve it to give you.a=5m/sSo now what you should be able to do is figure out that after 10 seconds the cart travelling at 5m/s would have travelled 10 metres.This is achieved by finding out how many 5's go into 10 which is 2.So you do 5×2 which equals 10.The 4kg cart has travelled 10 meters in 10 seconds with a force of 20N acting upon it.I hope that this has helped you.
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