• 3. What force is necessary to accelerate a 200 kg car at a rate of 60 m/s2? • a. Problem: • b. Given: • c. Formula: • d. Solution: • e. Answer: • 4. What is the mass of an object if a force of 90 N produces an acceleration of 30 m/s2? • a. Problem: • b. Given: • c. Formula: • d. Solution: • e. Answer: • 5. What is the acceleration of a 20 kg mass if a force of 180 N is used to move it toward Earth? • a. Problem: • b. Given: • c. Formula: • d. Solution: • e. Answer: