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Question about Work: Mechanical Energy

Subject Physics

Physics

Source Originais Teachy

Originais Teachy

Topic Work: Mechanical Energy

Work: Mechanical Energy

Difficulty Hard

Hard

(Originais Teachy 2025) - Question Hard of Physics

A block of mass m is released from rest at the top of an inclined ramp at an angle θ to the horizontal. As it moves down the ramp, the block covers a distance s until it hits a flat surface with a coefficient of friction μ. After travelling a distance d along the flat surface, the block ascends a second ramp sloped at the same angle θ. Taking into account the conservation of mechanical energy through the descents and ascents, along with the effect of the friction force on the flat surface, what is the maximum height h that the block reaches on the second ramp?

h = s sin(θ) + μ d

The maximum height h that the block reaches on the second ramp is given by: h = s sin(θ) - μ d.

h = s sin(θ) - μ d sin(θ)

h = s cos(θ) - μ d

h = s sin(θ) / μ d

Answer sheet:

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