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A car of mass m travelling with a velocity v comes to rest over a distance d in time t. The constant frictional force acting on the car while it is braking is found using:

Newton's Second Law: F=maa=v-u/tUsing SUVAT equations: v 2 = u 2 +2asv (final velocity)=0 u(inital velocity)= v s=d Rearranging gives: -v 2 =2ad a=-v 2 /2d Therefore F= -mv 2 /2dNegative sign suggests the ca...
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Answered by Ghafoor H. • Physics tutor
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Describe the parliamentary law making process in the United Kingdom

To create a new law a member of parliament will initially put forward a green paper. This paper is one which gathers evidence and opinions on a given subject whether that be a public opinion or one of other ...
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Answered by Jack M. • Law tutor
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Vous décrivez votre vie d’adolescent(e) pour votre blog. (vos passe-temps préférés, vos relations familiales, une activité récente avec un(e) ami(e), vos projets pour le week-end prochain)

Je jouais au foot avec mes amis quand j'étais plus jeune très régulièrement. Maintenant j'aime bien faire des courses au centre commercial.Je m'entends bien avec tous les membres de ma famille sauf ma sœur a...
MD
Answered by Megan D. • French tutor
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What were the key reasons for Hitler's rise to power?

Hitler's rise to power was not due to one event but rather, it was the result of a number of factors and events occurring both inside Germany and abroad. This question requires you to define the social and p...
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Answered by Shenade H. • History tutor
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Differentiate (with respect to x), y=2x^2+8x+5.

y= 2x^2 + 8x + 5 is a simple quadratic equation and can be easily differentiated. Consider it in different terms working from left to right: y converts to dy/dx. This just means ‘differentiate y with respect...
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Answered by Jack D. • Maths tutor
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