Please help write T if true or F if false for each of the following propositions for review purposes.

( ) 1. A mobile, in uniform rectilinear motion, moves at a speed of 4m/s in 20 seconds. Then, the distance traveled is 80 m. ( ) 2. A mobile, in uniformly varied rectilinear motion, changes its velocity from 2 m/s to 8 m/s. from 2 m/s to 8 m/s in 2.0 s. Then, the acceleration of the mobile is 0.33 m/s2. ( ) 3. The SI unit of measure for angular velocity is rad/s2. ( ) 4. The period is the time taken by a mobile that undergoes a uniform circular motion to make one complete revolution. circular motion to make one complete revolution. ( ) 5. In vertical free fall motion, a mobile is thrown upward. When it reaches its maximum height, the value of the acceleration is zero. ( ) 6. Tension is a tensile force that acts along a stretched flexible connector, such as a rope or a flexible stretched connector, such as a rope or cable. ( ) 7. Newton's Third Law tells us that the sum of the action and reaction forces equals zero. reaction is equal to zero. ( ) 8. The free body diagram is used to describe and analyze all the forces acting on a body. acting on a body. ( ) 9. Kinetic friction force is the force that opposes the motion of two systems in contact and moving relative to each other. systems that are in contact and moving relative to each other. ( ) 10. The centripetal force is parallel to the tangential velocity in a uniform circular motion. uniform circular motion.

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