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    Are all these correct?
    A spacecraft that intially moves at a constant velocity of 890ms-1 vertically. To change course a sideways force is produced by firing thrusters. This increases the velocity horizontally from 0 to 60ms-1 in 25s. The ship has a mass of 5.5*10^4Kg
    Calculate:
    The acceleration of the spacecraft horizontally, I'm guessing this is SUVAT to which I got 2.4ms-2.
    The force on the spacecraft produced by thrusters, a simple F=ma got me 132000N.
    b) Calculate the magnitude of the resultant velocity after 25s. Drew a vector triangle and did pythag, got 892ms-1.
    c) Calculate the angle between the initial and final directions of travel. Is this just basic trig?

    These questions are from the Nelson Thornes end of unit exam questions, I cannot find the mark scheme anywhere. Greatly appreciated if anyone can provide them. I have the end of chapter exam style q mark scheme but not the end of whole unit.
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    (Original post by Itsallinsidemyhead)
    Are all these correct?
    A spacecraft that intially moves at a constant velocity of 890ms-1 vertically. To change course a sideways force is produced by firing thrusters. This increases the velocity horizontally from 0 to 60ms-1 in 25s. The ship has a mass of 5.5*10^4Kg
    Calculate:
    The acceleration of the spacecraft horizontally, I'm guessing this is SUVAT to which I got 2.4ms-2.
    The force on the spacecraft produced by thrusters, a simple F=ma got me 132000N.
    b) Calculate the magnitude of the resultant velocity after 25s. Drew a vector triangle and did pythag, got 892ms-1.
    c) Calculate the angle between the initial and final directions of travel. Is this just basic trig?

    These questions are from the Nelson Thornes end of unit exam questions, I cannot find the mark scheme anywhere. Greatly appreciated if anyone can provide them. I have the end of chapter exam style q mark scheme but not the end of whole unit.
    Yes, I agree with the answers you have there.
    The angle is indeed found by trig from the same triangle you drew for part b)
 
 
 
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