Mechanics 4, M4 (4764) A2
Objectives
To prepare students for more advanced courses at university by extending the use of calculus in mechanics.
Students will be expected to be technically competent in the use of calculus and to be able to apply it to a variety of situations.
Students are expected to apply the modelling principles detailed in Mechanics 1 in the context of this module.
Assessment
Examination (72 marks)
1 hour 30 minutes
The examination paper has two sections.
Section A: two compulsory questions, each worth about 12 marks.
Section Total: 24 marks
Section B: two compulsory questions, each worth about 24 marks.
Section Total: 48 marks
Unless otherwise specified the value of the acceleration due to gravity should be taken to be exactly 9.8 ms^{2}.
Assumed Knowledge
Candidates are expected to know the content of C1, C2, C3, C4, FP1 and FP2 and M1, M2 and M3.
Calculators
In the MEI Structured Mathematics specification, no calculator is allowed in the examination for C1. For all other units, including this one, a graphical calculator is allowed.
MECHANICS 4, M4

Specification

Ref.

Competence Statements


VARIABLE FORCES

Application of variable forces in 1 dimension.

M4d1

Be able to calculate measures involving variable forces, in given dynamic situations in 1 dimension.


2

Be able to formulate and solve differential equations using an appropriate expression for acceleration.

VARIABLE MASS

The application of Newton's Second Law to problems involving variable mass.

M4k1

Understand and apply Newton's 2nd Law in the form F = .

2

Be able to set up and solve differential equations for situations involving variable mass.

STABILITY

The stability of equilibrium of a system of particles where the position of each is determined by a single parameter.

M4d3

Know and apply the energy criteria for the stability of a system of particles.

4

Appreciate that potential energy must be related to some fixed origin.

MECHANICS 4, M4

Specification

Ref.

Competence Statements


ROTATION OF A RIGID BODY

Calculation of moment of inertia.

M4r1

Understand the concept of moment of inertia as the analogue of mass in rotational motion.

Rotation of a rigid body about a fixed axis.

2

Be able to calculate moments of inertia of simple plane shapes and solids of uniform density from first principles.

3

Know and use the perpendicular and parallel axes theorems.


4

Be able to calculate centres of mass and moments of inertia of bodies of variable density and of compound bodies.

The equation of motion.

5

Be able to formulate the equation of motion of a rigid body about a fixed axis.

Kinetic energy of rotation.

6

Be able to apply the principle of conservation of energy to rotational motion of a rigid body.


7

Be able to determine the period of small oscillations of a compound pendulum.

Angular momentum.

8

Be able to calculate the angular momentum of a rigid body and understand its significance.

Conservation of angular momentum.

9

Understand the conditions under which angular momentum is conserved, and apply the principle of conservation of angular momentum.

Motion following an impulsive blow.

10

Know how to calculate the angular velocity of a rotating body immediately after an impulsive blow.

Caution: This document is provided for your convenience and is not the full specification.
To find that go back to the previous page and click on the connection to OCR.
