Name: ACI: SPH3U Dynamics Assignment 10. A frog with a mass of 0.5 kg is accelerated at 4 m/s'. What is the net force acting
Name: ACI: SPH3U Dynamics Assignment 10. A frog with a mass of 0.5 kg is accelerated at 4 m/s'. What is the net force acting on it? 1 1. What is the net force required to give an automobile of mass 1600kg an acceleration of 4.5 m/s?? 12. What is the acceleration of a wagon of mass 20 kg if a horizontal force of 64 N is applied to it (ignore friction)? 13. What is the mass of a block if a net force of 240.0 N causes it to accelerate at 2.5 m/s along a smooth surface? Page 7 of 29Name: AC1: SPH3U Dynamics 14. A 1.0 kg toy car is moving across a smooth oor with a velocity of 5.0 m/s. An unbalanced force of 2.0 N acts on the car for 4.0 s. Determine the velocity of the car at the end of the interval in each of the following cases: a. The force acts in the direction of the motion b. The force acts in the opposite direction to the motion of the car. 15. A block of mass 8.0 kg, starting from rest, is pulled along a rough horizontal tabletop by a constant force of 2.0 N. It is found that this block moves a distance of 3.0 m in 6.0 s. c. What is the acceleration of the block? d. What is the net force acting on the block? 6. What other force is involved in this problem? What is the magnitude of this force? 16. An electron has a mass of 9,1 x 1031 kg. Between the electrodes of a cathode ray tube= it moves a distance of 4.0 mm and is accelerated by an electrical force of 5,6 x 10'15N, Assuming that it started from rest, nd its acceleration and its nal velocity. Page 8 of 29
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