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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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How does differentiation work?

Differentiation is essentially a method of finding the gradient of a function. To put that in better terms, imagine you have a graph of y=x, this is a straight line which means the gradient will always be th...
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Answered by Anthony G. • 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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What is Photosynthesis?

Photosynthesis is the process by which plants make energy. Plants use carbon dioxide from the atmosphere, water from the soil and light which acts as a "catalyst" to make usable energy in the form ...
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Answered by Genevieve P. • Biology tutor
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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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