PHSC 1001 Final: PROBLEMSET 3

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azuremammoth471

15 Mar 2019

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Answers must be legibly written or typed with all the necessary equations and calculations. Answer concept questions briefly but clearly: in diving to a depth of 750 m, an elephant seal also moves 460 m due east of his starting point. Explain with a sketch: a leopard springs upward at a 45 angle and then falls back to the ground. Give your reasoning: in a football game a kicker attempts a field goal. The ball remains in contact with the ball is launched at an angle of 51 above the ground. The initial velocity of the kit is 11 m/s at an angle of 65 above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its vertical speed is zero. What is the vertical height between the two climbers: a car drives straight off the edge of a cliff that is 54 m high.

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This print-out should have 15 questions. Multiple-choice questions may continue on the next column or page - find all choices before answering. Two vectors A and B lie in the xy plane and are given by A = Ax i + Ay j B = Bx i + By j, where Ax = 3.58 m, Ay = 2.85 m, Bx = 7.09 m, By = -6.36 m. Find the magnitude of R = A + B. Answer in units of m Find the angle theta (between -180 degree and + 180 degree with counterclockwise positive) that the vector R makes from the positive x axis. Answer in units of degree When the Sun is directly overhead, a hawk dives toward the ground at a speed of 7.23 m/s. If the direction of his motion is at an angle of 39.8 below the horizontal, calculate the speed of his shadow along the ground. Answer in units of m/s Vector A has a magnitude of 10 and points in the positive x-direction, Vector B has a magnitude of 17 and makes an angle of 32 degree with the positive x-axis. What is the magnitude of A - B? An airplane starting from airport A (lies 342 km east, then 531 km at 62.2 degree west of north, and then 778 km north to arrive finally at airport B. The next day, another plane flies directly from A to B in a straight line. In what direction should the pilot trawl in this direct flight? Use counterclockwise its the positive angular direction from due east, between the limits of - 180 degree ami 180 degree . Assume there is no wind during these flights. Answer in units of degree How far will the pilot travel in this direct flight? Answer in units of km A projectile is fired straight upward at 126 m/s. How fast is it moving at the instant it reaches the top of its trajectory? Answer in units of m/s How fast is it moving at the instant it reaches the top of its trajectory if the projectile is fired upward at 12 degree from the horizontal? Answer in units of m/s At one instant the velocity of a particle is and a very short time later its velocity has changed to . Qualitatively, what was the direction of the particle's acceleration during the interval between the first and second instance?

1. A physics book dropped from the top of the school takes 3.00seconds to hit the ground. How high is the school and how fast wasthe book traveling when it hit the ground?

2. A ball rolls down a hill with constant a acceleration of 3 m/s2(squared). If it starts from rest, what is its speed at the end of4 seconds an how far did it move?

3. If I jump out of an airplane, and i am in the fictitious worldof the physics book (no air), how long will it take me to reach aspeed of 131.7 miles per hour and how far will I have traveledduring that time?

4. A tennis ball is thrown vertically upward it returns to thestarting point 6.0 seconds later. How high did the ball go?

5. Ryan's parents are out of town, so, of course, he throws aparty. During the party, a priceless vase was knocked from a shelf2.5 meters high and broke into several million pieces. There is notenough super glue in the world to put the vase back together. Howlong does it take the vase to hit the floor, how many miles perhour was it traveling when it hit the floor, and who does he blamefor this?

6. Jenelle throws Matt's calculator vertically downward with aninitial velocity of -4.9 m/s from the top of Enger Tower (19.6meters high). Determine:
a. the velocity of the calculator just as it hits the ground--
b. the time the calculator is in the air ---
Don't know the formulas or do I understand these problems and haveno book as a point of reference. Can you help me?

PHSC 1001 Final: PROBLEMSET 3

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