Calculating Acceleration and Final Speed of a Car with a Given Force and Mass

[flower123]

Really desperate for some help with this, Thought i had i cracked and quite clearly i don't
Im very bad with explaining how i arrived at a answer as i make such a mess of my answers and some time just guess as i can't seem to figure it out! Please help
. What is the magnitude of the acceleration that this force will cause when applied to a car with a mass of 1.1x10³Kg

Then calculate the final speed of the car (above) assuming that it was standing still initially and that the force of 5.0 x 10³ N is applied for 6.0s

Why would the car take longer to reach the calculated speed if the car's mass was 1.4 x10³Kg. which part of Newtons second law would explain this.

THANKS in advance .

 

[PhanthomJay]

Say flower, why don't you write out the equation for Newton's 2nd law, and the kinematic motion equations, and play around with them for a few minutes, and see what you get. Please show your work and post your results. Then someone will check it for you and provide further assistance.

 

[Kracatoan]

As my mechanics teacher always says - Write down what you know first.

Force (F) =
Time (t) =
Mass (m) =
Initial Speed (u) =

You know what all the above are, so fill them in.

Acceleration (a) =
Final Speed (v) =

What equations can you think of relating the 4 above quantities with the above 2 values? As Jay said, think suvat (the one without s as you don't know that) and Newton's 2nd law.