A fighter plane at sea is landing upon an aircraft carrier deck. When the aircraft lands, it must 'catch' a restraining elastic line in order to come to a halt. If the 12,000 kg aircraft has a landing speed of 70 meters/sec and must be brought to a halt in 120 meters, what is the magnitude of the K for the restraining line?

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.