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Energy Loss/Speed

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Take g= 9.8ms(-2)

Please answer all questions with full explanations thank you
A cyclist starting from rest freewheels for 200m down a slope of 1 in 10 (sin0 = 0.1) If the mass of the cycle and rider is 75kg:

1) What is the loss of potential energy of the cycle+rider?

2) If the speed of the cycle at the bottom of the hill is 10ms(-1) what is the kinetic energy of the cycle+rider?

3) What is the energy lost as friction?

4) What is the average friction force?

Thank you!

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