00:01
Here on this problem, we want to find various weights in newtons.
00:05
Now, in order to find weights in newtons, it's important to remember that force, which is your weight, is equal to mass times the acceleration due to gravity.
00:15
And we know that gravity is 9 .8 meters per second squared.
00:20
And mass needs to be in kilograms in order for us to be in newton's.
00:28
Here on a, we have 10 kilograms, and so it means m is 10.
00:34
And so the force is 10 times 9 .8, which is 98, and so that would be 98 newtons.
00:42
98 newtons.
00:45
Now on b, we're told the mass is 5 grams.
00:51
Well, five grams, if you divide by 1 ,000, is 0 .005 kilograms.
00:58
And again, we need to be in kilograms in order for us to be in newtons...