# Problem 1 to 6: You are driving your brand new Mustang on a straight highway. Suddenly...

###### Question:

Problem 1 to 6: You are driving your brand new Mustang on a straight highway. Suddenly you felt a strong desire to check physics while driving and so you checked the gauge: It indicates that the speed is 80 kilometers per hour. You enjoyed driving for another hour while checking speeds. At the end of speeding up period of one hour, you read your car's speed as 160 kilometer per hour. Then suddenly you saw red and blue flashing light following you. 1. (a) Draw a graph of your car's speed over time using the grid below. You may assume the rate of speed gain stays the same over time for the whole period of one hour. Use the vertical axis for the speed and horizontal axis as time. 20 30 40 50 60
Second Midtern Physics 109Fall 2019. Pa 4. (a) Calculate "average" velocities from the initial moment to (1) 15 minutes, (2) 30 minutes, (3) 45 minutes and (4) one hour. You need to show how you get the answers in order to get the credit. (b) Discuss why these are different from your calculated velocities in problem 3. Time Average velocity
Second Midtern Physics 109. Fall 2019, Page 7 3. Ubtain the distances your Mustang covered from the initial moment to (1) 15 minutes, (2) 30 minutes, (3) 45 minutes and (4) one hour. You need to show your work to get the credit. Time Distance covered by your Mustang
Second Midtern, Physics 109, Fall 2019, Page 18 6. Obtaining a general equation that calculates the distance (x =?): obtain the general equation of distance traveled of an object that moves under a constant acceleration. You need to show how you obtain your equation to get the credit. Explain each and every step in detail along as well as variables you employ in your derivation. Hint: This is similar to your experience of driving your new Mustang. You can substitute numbers in your work of getting distances (as those in problem 5) with symbols (letters) that gets the distance traveled in your previous answers.
wjectile motion: a paintball is fired horizontally at a certain unknown speed at a height of 3.0 m above the ground. What initial speed is required for a range of 50 m? You need to show how you get the answers in order to get the credit. Hint: draw a picture of this particular problem by putting the position of paintball gun (height), a range of ball, and possible trajectory of the ball into the picture.
Second Midtern Physics 109, Fall 2019 Page 10 8. Projectile motion: a football is kicked from a point on the ground that is a horizontal distance of 30 m from the goalpost. The ball leaves the kicker's foot with an initial speed of 30 m/s at an angle of 30.0 degree above the horizontal. What is the height of the ball above the crossbar as it crosses over the goalpost? You need to show how you get the answers in order to get the credit.

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