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A particle is moving in the with acceleration (2t - 3) ms^-2 and initial velocity 2ms^-1. Find the distance travelled when the velocity has reached 12ms^-1.

(1.) Integrate the expression for acceleration to find an expression for velocity: Velocity v = t^2 - 3t + c When t = 0, velocity = 2. Substituting in to find constant c, 2 = 0 + 0 + c therefore c = 2. v = t...
RF
Answered by Richard F. • Maths tutor
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Explain the First Past the Post electoral system and briefly describe its advantages and disadvantages.

The First Past the Post (FPTP) system is used for United Kingdom general elections. It consists of various elections in single member constituencies, the winner simply being the candidate who wins the most v...
JW
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Can you explain the difference between saturated and unsaturated fatty acids?

The key distinguishing feature between saturated and unsaturated fatty acids is the presence of a double bond. This double bond, present only in unsaturated fatty acids, will mean there are less hydrogen ato...
BM
Answered by Brendan M. • Biology tutor
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What are the three broad classifications of rock type? How is each produced?

The three main classifications of rock are igneous, sedimentary and metamorphic. Igneous rocks are produced by volcanic eruptions and form via the solidification of lava. Sedimentary rocks form via the erosi...
BR
Answered by Benjamin R. • Geology tutor
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Othello: ‘Typically, texts about husbands and wives present marriage from a male point of view.’ In the light of this view, discuss how Shakespeare presents the relationship between Othello and Desdemona in this extract and elsewhere in the play.

Particularly in an exam, breaking down the question helps us to understand what the examiners are looking for. We can then structure our answer in accordance. For example, in this question, there are various...
GW
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