Force, Motion, and Energy - Readiness TEKS 8.6(C) Name Date 7. An electric car has a mass of 2,000 kg. The engine is producing a force of 3,500 N to move the vehicle forward, but it must overcome air friction equal to 500 N. 8. An earthquake occurs as two plates slide past each other along a fault line. 500 N 3,500 N Fault What is the acceleration of the electric car in m/s? Record your answer and fill in the bubbles in the grid below. Be sure to use correct place value. Movement on fault 1) (2)(2)(2) 3)(3)(3) (2) (2) (3) (5) (5) (5) 5 (7)(7) (7) 7) (7 Epicenter Radiating seismic waves Focus Which description best describes the forces involved at the moment of an earthquake? A. The tectonic forces overcome the force of friction between the two plates resulting in an unbalanced force. B. The tectonic forces between the two plates are balanced with the fiction between them. C. The friction between the plates is greater than the tectonic forces pushing them past each other. D. The inertia of motion between the plates results in a balanced net force.