- #1

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answer: 120 N , 100 N

okay...i need help with this. i am using newtons law: force=mass x accelleration

i am trying to find force. mass is 20 kg and accelleration is 11 m/s. when i plug in that number, i get 220N. can someone please help?

- Thread starter beocom6000yello
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- #1

- 10

- 0

answer: 120 N , 100 N

okay...i need help with this. i am using newtons law: force=mass x accelleration

i am trying to find force. mass is 20 kg and accelleration is 11 m/s. when i plug in that number, i get 220N. can someone please help?

- #2

PhanthomJay

Science Advisor

Homework Helper

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You've got a couple of typos here, as noted above. Otherwise, you have solved for the net force when the body is accelerating at 11m/s^2. 220N is the net force. It is the algebraic sum of the 2 forces. You need to look at the 1m/s^2 acceleration case to get another equation before you can solve for the individual forces.a 20 kg box is on frictionless surface acted on by two horizontal surfacesyou mean forces. when in same direction, it pullsyou mean accelerates 11 m/sm/s^2 but in opposite directions, it pulls only 1 m/s accelerates 1m/s^2. determine magnitude of each force.

answer: 120 N , 100 N

okay...i need help with this. i am using newtons law: force=mass x accelleration

i am trying to find force. mass is 20 kg and accelleration is 11 m/s. when i plug in that number, i get 220N. can someone please help?

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