CAPE Physics Unit 1 · 2009 · Paper 1 · Question Q15
A student of weight 500\text{ N} is planning a trip to the peak of Blue Mountain. From her starting point, this will involve an increase in altitude of 1\,800\text{ m}. She buys "high calorie" energy bars which release 1\,000\text{ kJ} of energy when digested. Assuming her body to be 10\% efficient, how many bars will she need to eat for the necessary gain in altitude?
- (A)1
- (B)9
- (C)90
- (D)900
The answer is shown once you've answered.
Practise this question