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In-Class Quiz 9-1 In-Class Quiz 9-2 Which way does the normal force on the block point? Graph 1 A. B. C. D. Graph 2 Graph 3 Which way does the weight of the block point? Graph 4 Graph1 Graph2 Graph3 Graph4 Graph 1 A. B. C. D. A. B. C. D. Graph 2 Graph 3 Graph 3 Graph 4 Graph1 Graph2 Graph3 Graph4 In-Class Quiz 9-3 In-Class Quiz 9-4 Which way does the acceleration of the block point? Graph 1 Graph 2 Which way does the net force on the block point? Graph 4 Graph1 Graph2 Graph3 Graph4 In-Class Quiz 9-5: Newton’s First Law Newton’s First Law is the: A. Law of Gravity B. Law of Equilibrium C. Law of Inertia D. Law of Acceleration E. Law of Motion Objects at rest tend to remain at rest and objects moving at constant velocity tend to continue at this velocity UNLESS acted on by a net force and Graph 1 A. B. C. D. Graph 2 Graph 3 Graph 4 Graph1 Graph2 Graph3 Graph4 Van Going Down Hill 71. A van accelerates down a hill (Fig. P4.71), going from rest to 30.0 m/s in 6.00 s. During the acceleration, a toy (m = 0.100 kg) hangs by a string from the van’s ceiling. The acceleration is such that the string remains perpendicular to the ceiling. Determine (a) the angle θ and (b) the tension in the string. In-class Quiz 9-6 Which way does the acceleration of the toy point? A. Graph 1 B. Graph 2 C. Graph 3 Graph D. Graph 4 Graph 1 2 Graph 3 Graph 4 1