Newton’s 2nd Law of Motion

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Presentation transcript:

Newton’s 2nd Law of Motion Textbook: 4.2 Homework: pg. 144-146 # 20 – 38

Newton’s Second Law When there is a net force acting on an object, ____________________________ __________________________________ __________________________________

Ex: pg 143 # 8 As a rocket accelerates upward, its thrust remains constant but its acceleration increases. Given that Fnet = ma, what could cause an increase in acceleration? (Hint: It’s a major contributor to space junk.)

Ex 2: pg 145 # 35c Determine the acceleration.

Ex 3: pg 145 # 31 A batter of mass 100 kg uses a bat of mass 2.0 kg to hit a 140 g ball. If the impact time is 0.010 s and the ball reaches a speed of 60 km/h from rest, what was the average force applied to the ball?