The path of a projectile through space is called its:
Answer: trajectory
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Physics
- John goes for a run. From his house, he jogs north for exactly 5.0 min at an average speed of 8.0 km/h. He continues north at a speed of 12.0 km/h for the next 30.0 min. He then turns around and jogs south at a speed of 15.0 km/h for 15.0 min. Then he jogs south for another 20.0 min at 8.0 km/h. He walks the rest of the way home. How many kilometers does John jog in total?
- A man starts his car from rest and accelerates at 2 m/s^2 for 2 seconds. He then continues at a constant velocity for 11 seconds until he sees a tree blocking the road and applies brakes. The car, decelerating at 2 m/s^2 finally comes to rest. Which of the following graphs represents the motion correctly?
- Moustapha Jones drives east at 100 km/hr for 3 hours then back west at 80 km/hr for 1.5 hours. Which pair of answers gives his average speed and average velocity
- In the graph above (same as #6) a toy rolls from +3 m to +5 m. Which of the following statements is true?
- In the graph above what is the correct description of any location to the left of the zero? (graph shows a number line for position from 0 to 10)
- Which of the following units is the SI unit of velocity?
- Which of the following situations represents a negative displacement? (Assume positive position is measured vertically upward along a y-axis.)
- What is the speed of an object at rest?
- Which of the following is a pair of vector quantities?
- A car is moving with a uniform speed of 15.0 m/s along a straight path. What is the distance covered by the car in 12.0 minutes?
- A pilot drops a bomb from a plane flying horizontally at a constant speed. Neglecting air resistance, when the bomb hits the ground the horizontal location of the plane will
- A plane flying horizontally at a speed of 50.0 m/s and at an elevation of 160 m drops a package. Two seconds later it drops a second package. How far apart will the two packages land on the ground?
- A bullet is fired horizontally, and at the same instant a second bullet is dropped from the same height. Ignore air resistance. Compare the times of fall of the two bullets.
- A stone is thrown horizontally from the top of a tower at the same instant a ball is dropped vertically. Which object is traveling faster when it hits the level ground below?
- When a football in a field goal attempt reaches its maximum height, how does its speed compare to its initial speed?
- A ball thrown at an original speed of 8.0 m/s at an angle of 35 degrees above the horizontal. What is the speed of the ball when it returns to the same horizontal level?
- An Olympic athlete throws a javelin at four different angles above the horizontal, each with the same speed: 30 degrees, 40 degrees, 60 degrees, and 80 degrees. Which two throws cause the javelin to land the same distance away?
- At what angle should a water-gun be aimed in order for the water to land with the greatest horizontal range?
- Which of the following does not exhibit parabolic motion?
- Which is the path of a projectile (in the absence of friction)?
- Which of the following is not an example of projectile motion?
- Which of the following is an example of projectile motion?
- Which of the following is the motion of objects moving in two dimensions under the influence of gravity?
- Two balls are thrown horizontally. Ball C is thrown with a force at 20 N, and ball D is thrown with a force of 40 N. Assuming all other factors are equal, ball D will fall toward the ground
- A player kicks a football at an angle of 30.0 degrees above the horizontal. The football has an initial velocity of 20.0 m/s. Find the horizontal component of the velocity and the maximum height attained by the football.
If the answers is incorrect or not given, you can answer the above question in the comment box. If the answers is incorrect or not given, you can answer the above question in the comment box.