Question

newtons second law of motion if the force on an object is 20N and its mass 5 g, what is its acceleration?

Answer 1

F=ma, right? So you have F and m, what is a?

Answer 2

20=5g

Answer 3

doesn't give it, that is the whole question

Answer 4

F=ma, F=20N, m=5g, so you have \(20N=5g\times a\), solve for \(a\).

Answer 5

I have looked on 2nd law but so confusing

Answer 6

4

Answer 7

4??

Answer 8

There is actually one other trick here that I hadn't noticed. Newtons are kilogram meters per second squared, but it's giving you mass in grams, not kilograms. So you have to adjust that.

Answer 9

.005kg?

Answer 10

So, 4g is .004kg. So you have 20kgm/s^2=.005kg*a m/s^2. So a=20/.005m/s^2, which is 4,000 m/s^2.

Answer 11

Sorry, 5g is .005kg that should read.

Answer 12

ty so much