Problemas de Física

UNIVERSIDAD AUTNOMA DE NUEVO LENPREPARATORIA NM. 20

PHYSICS 1STAGE 4

TEACHER: Patricia de Jess Tamez AguirreSTUDENT: Cassandra Guadalupe Rojas RodrguezNO. 20 MATRICULE: 1663661 GROUP: 304

HORIZONTAL MOTION

1. A rock is launched horizontally from the height of a building that measures 50 meters, with a velocity of 15 m/s.

a) How much time does the rock take to land?b) What distance from the base of the building the rock lands at?

2. A stone is launched horizontally with a velocity of 25 m/s from a height of 60 meters, calculate.

a) The time in reaches the ground.b) The vertical velocity at 2 seconds.c) The distance when it lands.

3. An airplane flies horizontally with a velocity of 300 km/h and drops a projectile from a height of 700 meters respect to the ground.

a) How long will the projectile last to land?b) What horizontal velocity does the projectile travel after it was dropped?

4. A boy is standing over a bridge 100 meters above the water, and drops a stone horizontally with a velocity of 14 m/s. Calculate.

a) The time it lasts in reaching the water.b) The distance when the stone strikes the water.c) The vertical component of the velocity.d) The final resultant velocity.

5. A water hose launches horizontally a water spout with a velocity of 20 m/s. If it reaches a distance of 12m, find:

a) The time the water lasts in reaching the ground.b) The height that the hose had.c) The final components of the velocity (Vx and Vy).

6. A ball rolls over the edge of a table with a velocity of 8 m/s, if it reaches 10 meters from the point where the table ended, from what height was launched?

7. A body is thrown horizontally with a velocity of 30 m/s from a height of 80 meters. a) Determine how far, on the horizontal line of the launch point, the body will fall to the ground and b) what will be the velocity at the time of landfall.

8. From the mast of as hip, at a height of 10 meters above the deck, a ball is dropped. The ships velocity is 18 km/h. How far will the ship while the ball drops? Where will drop the ball? What will be the path of motion of the ball relative to the surface of the sea? What will be the velocity of the ball touching the deck?

9. There is chalk on the edge of the table. The chalk is launched, with a horizontal pulse and a direction perpendicular to the board. The footprint of the chalk on the board is 20 centimeters below the surface of the table. The distance from the board to the table is 1 meter. Determine the initial velocity of the chalk.

10. If we have the launch a package of medicines from a salvage aircraft flying horizontally with a velocity of 360 km/h at a height of 2 kilometers, so that the package falls in a certain place, at what distance from the site, as measured by the horizontal we must throw the package?

PROJECTILE THROW

1. Calculate: a) The range, b) the time of flight, and c) the maximum height of a projectile with an initial velocity of 400 m/s and an elevation angle of 40.

2. A baseball player hits a baseball with an angle of 37 respect to the horizontal and with an initial velocity of 15 m/s. Calculate:

a) Its range.b) Its time of flight.c) Its horizontal range.

3. An arrow is launched with a velocity of 60 m/s and reaches a maximum height of 150 meters, calculate:

a) Its range.b) Its time of flight.c) Its horizontal range.

4. An arrow is launched with a velocity of 50 m/s and reaches a maximum height of 120 meters, calculate:

d) Its range.e) Its time of flight.f) Its horizontal range.

5. A projectile is shot to the air with an angle such that the vertical component of its initial velocity (V0y) is 27 m/s and its horizontal component of its initial velocity (V0x) is 36 m/s.

a) What will be the initial velocity of the projectile (magnitude and direction)?b) How long does the projectile remain in the air?c) What horizontal distance will it travel?

6. A projectile is launched with an angle of 53 respect to the horizontal from a drain at 150 meters high. If the projectile is shot from a cannon with an initial 300 m/s velocity ofCalculate:a) What horizontal distance from the base of the drain with the projectile land to?b) How much time will it take to fall?

7. A cannon shots a projectile with an initial velocity of 200 m/s and an elevation angle of 30. Calculate:

a) The velocity of the projectile when it reaches the maximum height.b) The horizontal distance it has traveled up to that point.c) The maximum height reached.

8. As hot put competitor achieves a length of 22.3 meters. If the shot was at 45, what were (a) the initial velocity, (b) the maximum height and (c) the flight time?

9. A projectile was launched with an initial velocity of 300 m/s at an angle of 60 shooting. Calculate after 10 seconds:

a) The horizontal velocity component.b) The vertical velocity component.c) The absolute value of the velocity and direction that this forms with the horizontal.d) The horizontal distance.e) The height is located.f) The range of the projectile.

10. A rock is launched from a height of one meter over the ground with a velocity of 40 m/s and an angle of 30 with the horizontal; knowing that at a distance of 120 meters from the launching point there is a wall of 2 meters high. Calculate the height above the wall where the stone passes.

11. They want to launch a projectile over a fence that is 8 meters away and has height of 12 meters above the ground. If the projectile is 1 meter above the ground and the launch angle is 70, what is the magnitude of the initial velocity to pass the fence?

12. A cannon shots a projectile with an elevation angle of 50 and with an initial velocity of 400 m/s over the horizontal. Knowing that at a distance of 1000 meters there is a wall; calculate the height of the point where the projectile will hit the wall.

13. A projectile to be launched on Earth with a velocity Vo at an angle with a horizontal has a range of 320 meters. If the projectile was launched on the Moon with the same velocity and angle, what range is obtained?

14. What are the two angles relative to the horizontal must sign a canon for horizontal Range is 1000 meters; the velocity of the mouth of Canyon is 140 m/s?

15. A baseball player hitting a ball, which comes with a velocity of 45 m/s at an angle of 30 with the horizontal. If the ball went directed to right field and the fence (which is 2 meters high), which is located 100 meters from home, a) will pass the ball the fence? b) How high will the ball at that distance?