Homework Help: Physics

Posted by Emily on Friday, October 15, 2010 at 5:56pm.

A certain force made a 5.0 kg mass accelerate at 4.0 m/s^2. This same force made another object accelerate at only 0.8 m/s^2. Find the mass of the second object.

I have no idea how to do this.

Do i use m=1/a? What do i do?

Physics - bobpursley, Friday, October 15, 2010 at 5:58pm
F=m*a
F=5*4

F=M*.8

20=M*.8
Physics - Emily, Friday, October 15, 2010 at 6:02pm
So it's 20 x 0.8=16?
Physics - bobpursley, Friday, October 15, 2010 at 6:06pm
20=M*.8
divide each side by .8
Physics - Emily, Friday, October 15, 2010 at 6:08pm
Oh! thanks!
I understand it now :D

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