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A particle is moving along a straight line. The displacement of the particle from O at time t seconds is s metres where s = 2t^3 – 12t^2 + 7t. Find an expression for the velocity of the particle at time t seconds.

To find the velocity function of a particle when given its displacement function, you must differentiate the given function. v = 6t^2 - 24t + 7 .Similarly, to get the displacement function from the veloci...

Answered by Andrew L. • Maths tutor

5561 Views

David left his basketball outside overnight. At 1am the volume of air within the ball was 1.2m^3 and the outdoor temperature was 5 degrees Celsius. At 3am the temperature was -7 degrees Celsius. What is the volume of air inside the ball at 3am?

For this question we solve it using Charles’ Law. Charles’ law states that the product of volume and temperature gives a constant value. This is illustrated by VT=C. This means that volume and temperature...

Answered by Skye K. • Physics tutor

1551 Views

‘The reason behind Britain’s attempts to join the EEC in the years 1967 to 1973 was that Britain could no longer claim to be a world power in its own right.’ Assess the validity of this view

The best way to approach an essay question is to brainstorm. So, why did Britain attempt to join the EEC? As well as the reason given in the question, we can also consider Britain's economic decline, the ...

Answered by Sarah W. • History tutor

3974 Views

"The main reason for the Norman victory at Hastings was their superior tactics." How much do you agree with this argument? Explain your reasoning

Always be sure when approaching these questions to know a few things of what the question wants. "Main reason", "Norman victory", "superior tactics". By brea...

Answered by Quinn G. • History tutor

4586 Views

As a director, what aspects of Vladimir and Estragon's interactions would you emphasise, in order to enhance the sense of the Absurd in Beckett's "Waiting for Godot"?

Theatre of the Absurd owes it existence, to an extent, to the aftermath of World War II. Playwrights and theatre practitioners, experiencing the fright and existentialism that was caused after the destruc...

Answered by Nefeli S. • Drama tutor

1633 Views