4. net force 5. newton Section 2.2 6. acceleration 7. Newton’s second law Section 2.3 8. free fall 9. acceleration due to gravity 10. velocity 11. weight 12. terminal speed Section 2.4 13. slope Reviewing Concepts Section 2.1 1. A force is a push or a pull or any action that has the ability to change motion. Three examples of forces are ...
i. The force that binds us to earth. ii. The motion of the moon around the sun iii. The motion of planets around the sun iv. Tides due to the moon and the sun. 9. What is the acceleration of free fall? Answer. Acceleration due to gravity is the acceleration produced when objects fall freely towards the earth also known as acceleration due to ...
The law that states that the unbalanced force acting on an object equals the object's mass times its acceleration is a. Newton's first law of motion b. Newton's second law of motion c. Newton's third law of motion d. the law of conservation of momentumQuestion 18: The spring shown in figure (12−E5) is unstretched when a man starts pulling on the cord. The mass of the block is M. If the man exerts a constant force F, find (a) the amplitude and the time period of the motion of the block, (b) the energy stored in the spring when the block passes through the equilibrium position and (c) the kinetic energy of the block at this position.
Nov 22, 2005 · The car's change in velocity = ending velocity - starting velocity= 2 m/s - 10 m/s = -8 m/s. Its acceleration = its change in velocitydivided by the time taken = (-8 m/s)/(4 s) = -2 m/s/s. Example: A car's velocity changes from -2 m/s to -10 m/s in 4 seconds.
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