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For the question below, I have already got the answer 1.73 ms-2 but I got 1.76 ms-2. Can somebody please explain the method to solve this question? Thanks.
https://drive.google.com/file/d/1amR...ZBAYf8cp8/view
https://drive.google.com/file/d/1amR...ZBAYf8cp8/view
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(Original post by user342)
Could you just screenshot it and post that instead?
Could you just screenshot it and post that instead?
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#4
(Original post by gatheredjam6)
Can you not see the picture?
Can you not see the picture?
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#6
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(Original post by user342)
Draw a free body diagram and turn the thrust into its vertical and horizontal components. Figure out the weight of the helicopter (although I thought that would have been the 19kN, maybe I've misunderstood the question?) then the mass. Label the vertical thrust and use trig to work out the horizontal force of the thrust. Then u should know an equation to figure out the acceleration
Draw a free body diagram and turn the thrust into its vertical and horizontal components. Figure out the weight of the helicopter (although I thought that would have been the 19kN, maybe I've misunderstood the question?) then the mass. Label the vertical thrust and use trig to work out the horizontal force of the thrust. Then u should know an equation to figure out the acceleration
Then I did 19.29... x sin(10)=3.35.... kN
F/M=A 3350.2..../1900kg (assuming this is the mass)=1.76ms-2
But the answer in the book is 1.73 ms-2 which confused me.
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(Original post by user342)
Use 9.81 for g not 10. So you would get mass as 1936.799...kg not 1900.
Use 9.81 for g not 10. So you would get mass as 1936.799...kg not 1900.
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#10
(Original post by gatheredjam6)
OK thanks. In GCSE's we used 10 as the gravitational force. Thanks.
OK thanks. In GCSE's we used 10 as the gravitational force. Thanks.
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Yeh but I'm still in Yr 11 so I didn't even know you had to do that 
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#12
Wow well done! Feel free to message me or make another post if you have any more questions you're stuck on or don't understand 
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(Original post by user342)
Wow well done! Feel free to message me or make another post if you have any more questions you're stuck on or don't understand
Wow well done! Feel free to message me or make another post if you have any more questions you're stuck on or don't understand
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