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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: v2= u2+2asv (final velocity)=0 u(inital velocity)= v s=d Rearranging gives: -v2=2ad a=-v2/2d Therefore F=...

GH
Answered by Ghafoor H. Physics tutor
8027 Views

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 oth...

JM
Answered by Jack M. Law tutor
4048 Views

How should I prepare for my AS business exam

I would start early. Little bits of revision each day lead to a lot more knowledge and understanding than cramming in with only a couple of weeks lead up. I would also advice learning most definitions as ...

BC
1979 Views

What’s the difference between the two main liquidity ratios?

The two main liquidity ratios are current ratio and acid test ratio. Current ratio is current assets/current liabilities and acid test ratio is (current assets - inventories) / current liabilities. Both r...

BC
2968 Views

When and how do I use the subjunctive?

The subjunctive is used to express emotion, doubt, wishes and desires, impersonal phrases, recommendations and opinion. Essentially, if you aren't certain about something then you use the subjunctive. For...

EH
Answered by Eleanor H. Spanish tutor
1636 Views

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