A human canonball with a mass of 80 kg is fired out of a cannon with a force of 6,400 N. find the acceleration
Calculate the force of the earth's gravity actint on a person with a mass of 50 kg
What is the net force on a 1500 kg elevator acceleating at 2.2 m/s/s
What net force is neede to accelerate a 67 kg cart at 17 m/s/s
2007-02-16 00:52:15 · 3 answers · asked by Caro♥♪ ♫ 2 in Science & Mathematics ➔ Physics
Use F = m a
The first one, you have the Force and the mass, so you need a.
a = F / m
a = 6400 / 80 = 80 ms^-2
2) F = m a
F = 50 x 9.81 = 490.5 Newtons
3) F = m a
F = 1500 x 2.2 = 3300 Newtons
4) F = m a
F = 67 x 17 = 1139 Newtons
Remember F = m a (it is a very simple equation to re-arrange!!!)
It is fundamental in physics and you really should learn it.
2007-02-16 01:03:50 · answer #1 · answered by Doctor Q 6 · 0⤊ 0⤋
All of these problems use F = ma
If you know F and m then you can calculate a = F / m
For example the first one is a = 6400/80 = 80 m/s^2
You can do it!
2007-02-16 09:07:52 · answer #2 · answered by rscanner 6 · 1⤊ 0⤋
What is Newton's second law?
From there its simple "plug-n-chug".
DON'T DO ANOTHER PERSON'S HOMEWORK!
Update:
Lest I be attacked for accusing the OP of cheating let me clarify. The question is fine its other people solving the problem & giving the OP the answer is what I object to.
2007-02-16 09:04:54 · answer #3 · answered by MAF 2 · 1⤊ 1⤋