A 2.0 kg block is launched horizontally across a rough surface with an initial velocity of 5.0 m/s. The coefficient of kinetic friction between the block and the surface is 0.30. After sliding 1.5 meters, the block encounters an ideal spring with a spring constant of 200 N/m.
Calculate the maximum compression of the spring, taking into account the energy dissipated by friction. Assume the block remains in contact with the spring until maximum compression is achieved.
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Create Free Account Log inThis is a free VCE Units 3 & 4 Physics practice question worth 7 marks, testing your understanding of Energy transformations. It falls under How do physicists explain motion in two dimensions? in Unit 3: How do fields explain motion and electricity?. Submit your answer above to receive instant AI-powered marking and personalised feedback.
In this unit students use Newton’s laws to investigate motion in one and two dimensions. They explore the concept of the field as a model used by physicists to explain observations of motion of objects not in apparent contact. Students compare and contrast three fundamental fields – gravitational, magnetic and electric – and how they relate to one another. They consider the importance of the field to the motion of particles within the field. Students examine the production of electricity and its delivery to homes. They explore fields in relation to the transmission of electricity over large distances and in the design and operation of particle accelerators. A student-designed practical investigation involving the generation of primary data and including one continuous, independent variable related to fields, motion or light is undertaken either in Unit 3 or Unit 4, or across both Units 3 and 4, and is assessed in Unit 4, Outcome 2. The design, analysis and findings of the investigation are presented in a scientific poster format.
In this area of study, students use Newton’s laws of motion to analyse linear motion, circular motion and projectile motion. Newton’s laws of motion give important insights into a range of motion both on Earth and beyond through the investigations of objects on land and in orbit. They explore the motion of objects under the influence of a gravitational field on the surface of Earth, close to Earth and above Earth. They explore the relationships between force, energy and mass.
Analyse transformations of energy between kinetic energy, elastic potential energy, gravitational potential energy and energy dissipated to the environment (considered as a combination of heat, sound and deformation of material): • kinetic energy at low speeds: Ek = ½mv²; elastic and inelastic collisions with reference to conservation of kinetic energy • elastic potential energy: area under force-distance graph including ideal springs obeying Hooke’s Law: F = −kx • gravitational potential energy: Eg = mgΔh or from area under a force-distance graph and area under a field-distance graph multiplied by mass.
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