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Indicate what effect the change will have on the acceleration. The mass of the cart is increased to 2 kg.

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For 100 points The acceleration decreases

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Indicate what effect the change will have on the acceleration. The towing force is increased to 1.0 N.

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For 500 points The acceleration increases

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Both the mass of the cart and the towing force are doubled. Indicate what effect the change will have on the acceleration.

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For 300 points The acceleration remains the same

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The 0.5 N towing force is applied at an angle as shown at right. Indicate what effect the change will have on the acceleration.

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For 1000 points The acceleration decreases

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The track is inclined as shown below at right. Indicate what effect the change will have on the acceleration.

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For 2500 points The acceleration decreases

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Indicate what effect the change will have on the acceleration. The 0.5 N force is applied to two 500 g carts hooked together as shown below right.

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For 400 points The acceleration remains the same

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Draw the position vs. time and acceleration vs. time graphs corresponding to the velocity graph between points c and d

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For 100 points

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For the interval from a to b the train is: a.speeding up. b.slowing down. c.moving at constant speed. d. moving in the negative direction.

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For points b. slowing down

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Is the net force on the train equal to zero at any time? Explain.

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For points From b to c because the train is moving at a constant speed

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Where is the net force on the train the largest? Explain.

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For 1000 points From c to d because the acceleration is the greatest between those two points

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A 700. kg Yugo can go from rest to a speed of 45 m/s in 9.0s. What average net force acts on the car?

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For 100 points 3500 N

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Consider the block on a surface below. The coefficient of friction, µ, is If a 10. N force is applied to the block, what is its acceleration?

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For 8000 points 3 m/s 2

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Consider the block on a surface below. The coefficient of friction, µ, is How fast will the block be moving if the force of 10 N is applied for 5.0s?

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For 200 points 15 m/s

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Consider the block on a surface below. The coefficient of friction, µ, is How far will the block travel if the force of 10 N is applied for 5.0s?

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For 300 points 38 m

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The diagram below depicts a frictionless apparatus similar to that used for your Newton's 2nd Law experiment. Block A has a mass of 25 kg and block B has a mass of 5.0 kg. Determine the acceleration of the system and the tension in the string.

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For 3000 points 1.6 m/s 2 41 N

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A 70.0 kg box is pulled across a frictionless surface by a 300. N force at an angle of 30.° to the horizontal. What is the acceleration of the box in the x- direction?

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For 400 points 3.7 m/s 2

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A 70.0 kg box is pulled across a frictionless surface by a 300. N force at an angle of 30.° to the horizontal. What is the normal force on the box?

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For 500 points 536 N

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A 20.0 kg block is allowed to accelerate down a ramp with negligible friction. Determine the acceleration of the block.

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For 200 points 3.2 m/s 2

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A 20.0 kg block is allowed to accelerate down a ramp with negligible friction. Would the acceleration be different if the mass of the block were 10kg? Explain.

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For 600 points No, because it is gravity that is pulling the block down the ramp. Only changing the incline changes the acceleration, as long as the ramp is frictionless.

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For 300 points

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