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Question: A horizontal force of 80 N acts on a mass of 6 kg resting on a horizontal surface. The mass is initially at rest and covers a distance of 5 m in 0.92 s under the action of the force. Assuming there are noenergy losses due to air resistance and therefore that the acceleration is constant:
(a) Calculate the total energy expended in the acceleration.
(b) Plot a graph of the kinetic energy of the mass against time.
(c) Plot a graph of the kineticenergy of the mass against distance.
(d) Calculate the coefficient of friction between the mass and the surface.
Two vectors, A and B are added by means of vector addition to give a resultant vector R: R=A+B. What are the maximum and minimum possible values for the magnitude of R
Flow can be measured in a variety of methods
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Calculate the initial velocity of the projectile ball. Note that θaverage is the average height from the small m is the mass of the projectile ball, and the capital M is the mass of the pendulum arm
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