discussion summary practice problems Problems practice An alien is flying her spaceship at half the speed of light in the positive x direction when the autopilot begins accelerating the ship uniformly in the negative y direction at 2.34 m/s2 (0.2 times the acceleration due to gravity on the alien’s home planet, the name of which is impossible to write in human symbols). Determine the resultant displacement ...

Read More »# kinematics

## Parametric Equations Practice

discussion summary practice problems Practice practice problem 1 An alien is flying her spaceship at half the speed of light in the positive x direction when the autopilot begins accelerating the ship uniformly in the negative y direction at 2.34 m/s2 (0.2 times the acceleration due to gravity on the alien’s home planet, the name of which is impossible to write in human symbols). Determine the ...

Read More »## Parametric Equations Summary

discussion summary practice problems Parametric Equations Summary N-dimensional motion can be completely described by n one-dimensional algebraic expressions along n mutually perpendicular directions (where n is any whole number greater than zero). Two-dimensional motion can be completely described by two, one-dimensional algebraic expressions along two perpendicular directions. Three-dimensional motion can be completely described by three, one-dimensional algebraic expressions along three mutually perpendicular directions. r = x î ...

Read More »## projectile Problems

discussion summary practice problems Problems practice In the 1994 action-adventure film Speed, an extortionist equipped a Los Angeles bus with a bomb that was set explode if the speed of the bus fell below 50 mph (22 m/s). The police discovered the bomb and routed the bus on to a segment of freeway that was still under construction — their intention being to ...

Read More »## projectile Practice

discussion summary practice problems Practice practice problem 1 In the 1994 action-adventure film Speed, an extortionist equipped a Los Angeles bus with a bomb that was set explode if the speed of the bus fell below 50 mph (22 m/s). The police discovered the bomb and routed the bus on to a segment of freeway that was still under construction — their intention ...

Read More »## projectile Summary

discussion summary practice problems Summary A projectile is any object… with an initial non-zero, horizontal velocity whose acceleration is due to gravity alone. The path of a projectile is called its trajectory. A projectile is said to be… a simple projectile if the acceleration due to gravity may be assumed constant in both magnitude and direction throughout its trajectory. a satellite if it follows a closed path that ...

Read More »## Projectiles Discussion

discussion summary practice problems Discussion introduction A projectile is any object that is cast, fired, flung, heaved, hurled, pitched, tossed, or thrown. (This is an informal definition.) The path of a projectile is called its trajectory. Some examples of projectiles include… a baseball that has been pitched, batted, or thrown a bullet the instant it exits the barrel of a gun or rifle a bus driven ...

Read More »## Kinematics In Two Dimensions Problems

discussion summary practice problems Problems practice I went for a walk one day. I walked north 6.0 km at 6.0 km/h and then west 10 km at 5.0 km/hr. (This problem is deceptively easy, so be careful. Begin each part by reviewing the appropriate physical definition.) Determine… the total distance of the entire trip the total displacement of the entire trip the average speed ...

Read More »## Kinematics In Two Dimensions Practice

discussion summary practice problems Kinematics In Two Dimensions Practice Practice practice problem 1 I went for a walk one day. I walked north 6.0 km at 6.0 km/h and then west 10 km at 5.0 km/hr. (This problem is deceptively easy, so be careful. Begin each part by reviewing the appropriate physical definition.) Determine… the total distance of the entire trip the total displacement ...

Read More »## synthesis vs analysis summry

discussion summary practice problems Summary Kinematics problems in two dimensions are essentially synthetic geometry problems. To solve them you should be able to… represent a kinematic event with a geometric diagram, use geometry to determine unknown magnitudes (lengths) and directions (angles), and use these results to determine kinematic quantities. Review the kinematic definitions presented earlier in this chapter. First the scalar ...

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