M1 Mechanics Question
A spaceship of mass 5000kg is stationary in deep space. It fires its engine producing a forward thrust of 2000N for 2.5 mins, then turns them off. The spaceship then enters a cloud of interstellar dust which brings it to a halt after 7200km
The spaceship travels in convoy with another spaceship the same in all respects, except that it carries another 500kg equipment.
Both carry out the same procedure
Which travels further into the dust cloud?
The answer is the first spaceship by 655km, but I can't figure out how to get this answer
Thankyou!
The spaceship travels in convoy with another spaceship the same in all respects, except that it carries another 500kg equipment.
Both carry out the same procedure
Which travels further into the dust cloud?
The answer is the first spaceship by 655km, but I can't figure out how to get this answer
Thankyou!
For the second spaceship entering the cloud...
From the previous question, the resistive force acting on the spaceship is 1.25N
So,
F=ma
-1.25=5500a
a= -0.00023
u=60
v=0
a=-0.00023
s=?
So,
v^2=u^2 + 2as
0^2 = 60^2 + 2 x -0.00023 x s
s = 7826086.97m
Spaceship 1 dist. - spaceship 2 dist. =
720,0000m - 7826086.957m
=626086.9565m
=626km
Where am I going wrong, as the answer should be 655km?? Thankyou!
From the previous question, the resistive force acting on the spaceship is 1.25N
So,
F=ma
-1.25=5500a
a= -0.00023
u=60
v=0
a=-0.00023
s=?
So,
v^2=u^2 + 2as
0^2 = 60^2 + 2 x -0.00023 x s
s = 7826086.97m
Spaceship 1 dist. - spaceship 2 dist. =
720,0000m - 7826086.957m
=626086.9565m
=626km
Where am I going wrong, as the answer should be 655km?? Thankyou!
A spaceship of mass 5000kg is stationary in deep space. It fires its engine producing a forward thrust of 2000N for 2.5 mins, then turns them off. The spaceship then enters a cloud of interstellar dust which brings it to a halt after 7200km. The spaceship travels in convoy with another spaceship the same in all respects, except that it carries another 500kg equipment. Both carry out the same procedure. Which travels further into the dust cloud? !
For the second spaceship entering the cloud...
From the previous question, the resistive force acting on the spaceship is 1.25N
So,
F=ma
-1.25=5500a
a= -0.00023
u=60
v=0
a=-0.00023
s=?
So,
v^2=u^2 + 2as
0^2 = 60^2 + 2 x -0.00023 x s
s = 7826086.97m
Spaceship 1 dist. - spaceship 2 dist. =
720,0000m - 7826086.957m
=626086.9565m
=626km
Where am I going wrong, as the answer should be 655km?? Thankyou!
For the second spaceship entering the cloud...
From the previous question, the resistive force acting on the spaceship is 1.25N
So,
F=ma
-1.25=5500a
a= -0.00023
u=60
v=0
a=-0.00023
s=?
So,
v^2=u^2 + 2as
0^2 = 60^2 + 2 x -0.00023 x s
s = 7826086.97m
Spaceship 1 dist. - spaceship 2 dist. =
720,0000m - 7826086.957m
=626086.9565m
=626km
Where am I going wrong, as the answer should be 655km?? Thankyou!
Quick Reply
Related discussions
- What units do I need for Edexcel IAL or IAS Further Maths
- Messed up CIE Math P3 and Physics P4.
- tough practice questions for a level science
- AS level further maths modules
- Revising for Edexcel's AS Maths - running out of material.
- Confused in choosing the right combination for A2 in maths
- How to have my school allow year 12 to choose a math subject for year 13.
- Leeds Beckett University Software Engineering MEng A levels Access course
- How should I prepare for the STEP?
- Numbers of Arrangements
- AS Maths M1 help - please!
- Ial m1 oct 22 q
- How does this mark scheme work A Level maths
- A Level Maths Stats
- A Chain Sliding Through a Tube
- the issac physics astronomy question
- Edexcel Further Mathematics Mechanics Exam 14th June 2023 [Exam Chat]
- A level chemistry help please
- Partial derivatives and small changes
- How did you find out about TSR?
Latest
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
Trending
Last reply 3 days ago
Did Cambridge maths students find maths and further maths a level very easy?Last reply 2 weeks ago
Edexcel A Level Mathematics Paper 2 unofficial mark scheme correct me if wrongMaths
71
