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# As level forces question watch

1. 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.
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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