Mechanics questions | form five Physics

1. State where the magnitude of acceleration is greatest in a simple harmonic motion (S.H.M.)?
2. Sketch a graph of acceleration against displacement for a simple harmonic motion.

Answer / Solution

UNSOLVED

A vertical spring fixed at one end has a mass of 0.2kg and is attached at the other end.
Determine the:

1. Extension of the spring.
2. Energy stored in the spring.

Answer / Solution

UNSOLVED

The displacement of a particle from the equilibrium position moving with simple harmonic motion is given by ​ x = 0.05 sin 6​t ​ , where t is time in seconds measured from an instant when x ​ = 0. Calculate the:

1. Amplitude of oscillations.
2. Period of oscillations.
3. Maximum acceleration of the particle.

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UNSOLVED

1. Define the universal gravitational constant.
2. How is gravitational potential related to gravitational field strength?

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UNSOLVED

1. Write down an expression for the acceleration due to gravity (g) of a body of mass ​ m which is at a distance ​ r ​ from the centre of the earth.
2. If the earth were made of lead of relative density of 11.3, what would be the value of acceleration due to gravity on the surface of the earth?

Answer / Solution

UNSOLVED