![KillerSteamcar](/avatars/17896.jpg)
KillerSteamcar
02.10.2019 •
Physics
On a spacecraft two engines fire for a time of 399 s. one gives the craft an acceleration in the x direction of an x = 4.63 m/s2, while the other produces an acceleration in the y direction of ay = 8.15 m/s2. at the end of the firing period, the craft has velocity components of vx = 3160 m/s and vy = 4020 m/s. find (a) the magnitude and (b) the direction of the initial velocity. express the direction as an angle with respect to the +x axis.
Solved
Show answers
More tips
- S Style and Beauty How to Braid Hair with a Plaiting Machine: Tips and Recommendations...
- B Business and Finance How to Create a Business Plan? Your Ultimate Guide...
- F Food and Cooking Deflope: What is it and how does it work?...
- F Food and Cooking Why Doesn t the Confirmation Link Come to Email?...
- F Food and Cooking How to Get Reconfirmation of Registration?...
- S Science and Technology Discovering the Anatomy of an LCD TV Screen...
- H Health and Medicine What You Need to Know About Nasal Congestion in Infants: Causes, Symptoms, and Treatment...
- A Auto and Moto What is the Average Lifespan of an Engine in a Car?...
- C Computers and Internet Make Money Online: Secrets and Essential Ways...
- A Auto and Moto How Can Parking Sensors Help Drivers?...
Answers on questions: Physics
- P Physics The 50 kg roller coaster at position 1 is at a height of 20 m, 10 m at position 2 and 1 m at position 3. If the kinetic energy at position 1 is 0 J with a velocity...
- P Physics A 65 kg rock climber has 30,000 J of potential energy. What is the height of the rock climber above the ground?...
- P Physics Forces that are unequal in size but opposite in direction will cause movement. A) true B)false...
- P Physics While moving in, a new homeowner is pushing a box across the floor at a constant velocity. the coefficient of kinetic friction between the box and the floor is...
- P Physics The hydraulic tool holder is a type of what? A.port B. clamp C. Press D. Actuator...
- P Physics An empty beaker weighs 40.25 g. when completely filled with water, the beaker and its contents have a total mass of 317.45 g. what volume does the beaker hold?...
- P Physics What is the magnitude of the resultant force (caused by the other two masses) on the mass at the origin? the universal gravitational constant is 6.6726 × 10−11...
- P Physics How fast, in rpm, would a 5.8 kg, 22-cm-diameter bowling ball have to spin to have an angular momentum of 0.21 kgm2/s...
- P Physics Look at the forces acting on the box. The vertical (up and down) forces are 3 points _(1)_ and the horizontal (side to side) forces are not. There is a net force...
- C Chemistry Which is an example of a beneficial mutation? one that changes the color of a rabbit, allowing it to hide from predators. one that results in lighter flower petal...
Ответ:
Explanation:
We can determine the initial velocity of the spacecraft using the data provided using the equations:
Replacing with the known data, we have that:
Once we know the components vx and vy of the initial velocity, we can apply trigonometry to determine the magnitude and direction of the vector initial velocity, as follows. First, we use the Pythagorean theorem:
Then, we find the angle with respect to the +x axis using the definition of tangent:
I hope everything was clear with my explanation. If I can help you any futher, please let me know. Have a great day :D
Ответ: