Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A space ship is moving in space with a velocity of 50km/s its engine fires for 10sec such that its velocity increases to 60km/s caculate the total distance

travelled by the space ship in 1/2min from the time of firing its engine



This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
During the time the engine fires, there is an acceleration of the spaceship.  Once, engine is off, the spaceship moves with a constant velocity.

a = ( v - u ) / t
a = (60 - 50) /10 = 1 km/s²

distance travelled in the first 10 sec. = s1 = u t + 1/2 a t²  or (v + u)/2 * t
       s1 = 550 km
distance travelled in 20 sec. after engine firing is over = 60 km/s * 20 s
     s2 = 1, 200 km

Total distance travelled = 1, 750 km

1 5 1
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts