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Help with specimen paper 2

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For the question 1 part b, the markscheme says that you have to add 4700N but where is this number coming from? I understand that average force is different from net force, but where does this value come from?

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34 minutes ago, physicsfedme said:

For the question 1 part b, the markscheme says that you have to add 4700N but where is this number coming from? I understand that average force is different from net force, but where does this value come from?

I think it comes from the fact that you also need to take the weight of the container into account. The question says that the container has the mass of 480 kg. If you multiply this number with the acceleration due to gravity (9.81), you will get: 480 * 9.81 = 4709 N = 0.47 * 10^4 N.

Good luck with your exam!

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3 hours ago, Vioh said:

I think it comes from the fact that you also need to take the weight of the container into account. The question says that the container has the mass of 480 kg. If you multiply this number with the acceleration due to gravity (9.81), you will get: 480 * 9.81 = 4709 N = 0.47 * 10^4 N.

Good luck with your exam!

This makes a lot of sense, I was taking 10 for the value of acceleration so I didn't even think about this. Thanks a lot.

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