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numericforces7-18

# numericforces7-18 - TYPICAL NUMERIC QUESTIONS FOR PHYSICS I...

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TYPICAL NUMERIC QUESTIONS FOR PHYSICS I REGULAR QUESTIONS TAKEN FROM CUTNELL AND JOHNSON CONTENT STANDARD IC, ID FORCES 1. When the net force that acts on a hockey puck is 10 N, the puck accelerates at a rate of 50 m/s 2 . Determine the mass of the puck. A) 0.2 kg B) 1.0 kg C) 5 kg D) 10 kg E) 50 kg 2. A 15-N net force is applied for 6.0 s to a 12-kg box initially at rest. What is the speed of the box at the end of the 6.0-s interval? 3. A 810-kg car accelerates from rest to 27 m/s in a distance of 120 m. What is the magnitude of the average net force acting on the car? 4. Two forces act on a 4.5-kg block resting on a frictionless surface as shown. What is the magnitude of the horizontal acceleration of the block? Page 1

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