(Solved): Q4(a) A block of a rigid mass of 3 kg slides down a frictionless incline of height 5 m . Find its ...

Q4(a) A block of a rigid mass of 3 kg slides down a frictionless incline of height 5 m . Find its speed at the bottom of the frictionless incline. The result can be obtained by using the conservation of energy principle, considering that the initial potential energy at the height is entirely converted into kinetic energy at the bottom. (2 marks) (b) Identify, how would the presence of friction affect the final speed of the block? (1 marks)