A train that has a mass of 5,000,000 kg is coasting along a train track at 4 m/s when the engineer applies the brakes. As she applies the brakes, the ground exerts a force of 100,000 N on the train, in the direction opposite to the motion of the train. Eventually the train comes to a stop. What distance does it take for the train to stop?

answer; /// the above statement is (true);

good for her? ? where is the question?

the closer the planet is to the sun, the larger the gravity

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west