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Linear Motion Problems Group Practice! Grab a whiteboard and a box set.

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Presentation on theme: "Linear Motion Problems Group Practice! Grab a whiteboard and a box set."— Presentation transcript:

1 Linear Motion Problems Group Practice! Grab a whiteboard and a box set

2 A motorboat is traveling due north in calm water at a speed of 6.0 m/s. The operator puts the motor in reverse and the boat receives an acceleration of -1.5 m/s 2. How long after the boat is put into reverse does it momentarily come to a stop? How far has the boat traveled while it decelerated to a stop?

3 A car moving at 32.0 m/s hits a wall and stops in s. Calculate the acceleration stopping the car.

4 The driver of a pick-up truck going 100. km/h applies the brakes, giving the truck a uniform deceleration of 6.50 m/s 2 while it travels 20.0 m. What is the velocity of the truck in m/s at the end of this distance? How much time does it take the driver to come to a stop?

5 A rocket accelerates from rest at a rate of 40.0 m·s -2 until it reaches a velocity of m·s -1. How much time does this take?

6 A jet aircraft being launched from an aircraft carrier is accelerated from rest along a 94m track for 2.5 s. What is the launch speed of the plane?

7 A car accelerates at 2.5 m·s -2 E for 16 s. After this time the car is moving at 10.0 m/s W. Calculate its initial velocity.

8 An Olympic biathlete shoots a bullet at a target 50.0 m away. If the average velocity of the bullet is 323 m·s -1 How much time does it take for the bullet to reach the target?

9 From the moment a 40.0 m/s fastball touches the catcher’s mitt until it is completely stopped takes s. Calculate the average acceleration of the ball as it is being caught.

10 Top-fuel drag racers are able to uniformly accelerate at 12.5 m/s 2 from rest to 100. m/s before crossing the finish line. How much time elapses during that acceleration? How far has the drag racer traveled down the track in that time?

11 An Alaska Airlines jet traveling at 88.0 m/s lands on a runway and comes to a stop 11.0 seconds later before taxiing to the gate. What is the acceleration of the jet as it lands? How long does the runway need to be for this jet to land?

12 A motorcycle traveling at 16 m/s accelerates at a constant rate of 4.0 m/s 2 over a distance of 50. m. What is its final velocity?

13 Police find skid marks 60. m long on a highway showing where a car made an emergency stop. Assuming that the acceleration was -10. m/s 2 (about the maximum for dry pavement), how fast was the car going when it began to skid? Was the car exceeding the 80 km/h speed limit? (show your work to justify your answer).

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