Homework Statement
Hey guys..
A train traveling at 40km/h accelerates at a rate of 5.0m/s^2 for 0.80s.what is its final speed.
[b]2. Homework Equations [/b
i believe this is the equation a=v1-v0/t
The Attempt at a Solution
Im totally stuck i tried but due to a lack of ti 84 i...
BEWARE**completely confused
Hey guys i have a physics test tomarrow an i just need a few confusing things cleared.
1)v=d/t-------my thing with that is i remeber my teacher saying that we would need algebra to solve this pproblem but I am confused on how to do so...an example would be great...
i kinda want to be on the safe side so i can answer the first question like this.
1)Well i could tell if beatrice is doing work based on if the object moves an if it moves ,how much it moves.
2)i should use the formula work=force*movement
3)beatrice does 80(j) work on the box.
Are these...
my attempt at work was 40*2=80 that's the answer i would put so is it right an how would i express that number
an what do they mean by this
when force is measured in Newtons and distance is measured in meters the si unit of work is Newton*meter(n*m)..im so confused
Homework Statement
1)the illustration shows beatricce pushing on a heavy box.beatrice pushes with a force of 40n.how can you determine if beatrice is doing work on the box?
2)beatrice pushes the box 2m to the right.what formula should yo useto caculate the amount of work done on the box...