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Question 15 (1 point) A 19 kg block with an initial velocity of 19 m/s slides across a horizontal surface and comes to rest.
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Answer #1

Concept - use equation of kinematics to find the acceleration and then use Newton’s law of motion to find the force as shown below1 vf = Vitat = 0 = 19m/s + a(45) } a=-4.75 m/s² Fe mal = (19kg) (4-75m/52) - 9025 N 16) F = ma 4000 N = m (3m183) m= 1333.33

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