Originally Posted By: paul

you can then multiply the
solar sails mass x its velocity

p=mv

and it will equal -40N


mass x velocity does not have units of force (N). Why should I try to interpret what you intend to say when it has such fundamental mistakes.

If you mean momentum, then that won't be 40 anythings either. The momentum will depend on how much time the force was applied for. You havn't stated that so we can't know what the momentum will be.

Last edited by kallog; 09/20/11 03:20 AM.