Here weight force is perpendicular to the direction of motion of the object at the top of the circle) and centripetal force points down,thus normal force will point down as well. From a logical standpoint, a person who is travelling in the plane will be upside down at the top of the circle.
OK-So definitively David Cameron who is the current British Prime Minister earns Â£142,500 per year. Recently the Civil Service disclosed the salary's of all of the Cabinet members who earn over Â£150,000. David Cameron's Â£142,500 was used as a bench mark for this.
Britain's highest-paid executive is Bob Diamond, head of the investment arm of Barclays, who last year earned a salary of Â£250,000 and bonuses of over Â£22m. But even his earnings were dwarfed by the UK's brightest entrepreneurs such as moneysupermarket.com founder Simon Nixon, who earned more than Â£103m last year.