SHOW YOUR COMPLETE SOLUTION AND WRITE YOUR SOLUTION ON A PAPER. Multiple Choice [2 pts each]. Write the CAPITAL LETTER of the correct answer. Show your solution. Ignore air resistance and assume acceleration clue to gravity on the surface of the earth is 9.3 mfsz. For Problems 1-4: Your mother asked you to pull a 50-kg sack of rice to be placed on the kitchen floor based on the illustration below: F = 500 N H* = 0.237 1. What is the normal force exerted by the floor on the sack of rice? a. 50 N b. 116 N C. 490 N d. 500 N 2. How much is the frictional force exerted by the floor? a. 50 N b. 116 N C. 490 N d. 500 N 3. What is the acceleration of the sack of rice if you pulled it with a 500-N force? a. 7.7 m/s2 b. 12.3 m/s2 c. 10.0 m/$2 d. 9.0 m/s2 4. In case your mother just cleaned the kitchen floor so that the floor becomes frictionless, what is the acceleration on the sack of rice if the same pull force of 500 N is applied? a. 7.7 m/s2 b. 12.3 m/s2 c. 10.0 m/$2 d. 9.0 m/s2