Asked Feb 4, 2019

On a spacecraft two engines fire for a time of 532 s. One gives the craft an acceleration in the x direction of ax = 4.92 m/s2, while the other produces an acceleration in the y direction of ay = 7.16 m/s2. At the end of the firing period, the craft has velocity components of vx = 3743 m/s and vy = 4808 m/s. Calculate the magnitude of the initial velocity.


Expert Answer

Step 1

The magnitude of the initial velocity can be calculated using following steps.

Step 2


Time taken, t = 532 s

Acceleration in x direction, ax=4.92 m/s2

Acceleration in y direction, ay=7.16 m/s2

Final velocities of spacecraft in x direction, vx = 3743 m/s

Final velocities of spacecraft in y direction, vy = 4808 m/s

Step 3

According to first equation of motion we get,

v = u + at


v = final velocity of the object

u = initial velocity of the object

a = accelerat...


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Newtons Laws of Motion

Related Physics Q&A

Find answers to questions asked by student like you
Show more Q&A

Q: A motorcycle daredevil is attempting to jump across as many buses as possible (see the drawing). The...

A: The bike is making a projectile motion and the horizontal distance travelled by bike is equal to te ...


Q: An oscillator consists of a block attached to a spring (k = 405 N/m). At some time t, the position (...

A: Given:


Q: Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. The f...

A: Let m1 and m2 be the mass of first and second satellite respectively.Assuming the initial velocity o...


Q: An unwary football player collides with a padded goalpost while running at a velocity of 6.50 m/s an...

A: Given:Initial velocity of the football player, u = 6.5 m/sFinal velocity of the football player, v =...


Q: We have 39.5 g of a particular substance. Its specific heat in solid form is 0.8 J/(g K) and its spe...

A: The unit of temperature is not given. As the unit of Temperature used in specific heat is Kelvin. So...


Q: Two manned satellites approaching one another at a relative speed of 0.300 m/s intend to dock. The f...

A: Given:


Q: Physics lab hw question

A: Hey, since there are multiple questions posted, we will answer first question. If you want any speci...


Q: A soccer ball whose radius is 11 cm rolls a distance of 10 m in 3.50 s. What is the angular speed of...

A: The linear velocity of the ball is proportional to the angular speed of the ball through the constan...


Q: Suppose you design an apparatus in which a uniformly charged disk of radius R is to produce an elect...

A: Given: