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6. What is the acceleration of a 500-kg tricycle moving at 8 m/s takes a turn around a circle with a radius of 20 m? a. 0.4 m/s2 c. 4 m/s' b. 0.5 m/s d. 5 m/s2 7. What is the total force of acting on the 450 kg-tricycle is the acceleration is 4m/s'? a. 1700 kg.m/s2 C. 1800 N b. 1900 N d. 1950 N 8. What is the centripetal force exerted on a 500 kg jeep taking a turn on a 300 m radius road on horizontal ground at 20 m/s? a. 33 kg.m/s' C. 34 N b. 667 N d. 670 kg.m/s? 9. Which of the following acts on an object in uniform circular motion with direction is always towards the center of the rotation? a. Tangential velocity c. Tangential acceleration b. Centripetal acceleration d. Centripetal force 10. What is the tangential velocity of a rotating wheel with the diameter of 75 cm and angular velocity of 48 rad/sec? a. 0.64 m/s c. 64 m/s b. 36 m/s d. 2,160 m/s