Neco Model Questions Vol1 2017 Physics Question 5

Practice essay / theory question 5 from the 2017 Neco Model Questions Vol1 Physics examination. This question covers Work, Energy, Power, Friction, Spring potential energy .

Neco Model Questions Vol1 2017 Physics Essay / Theory

Topics: Work Energy Power Friction Spring potential energy

Question 5 NECO_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • essay

A 5.0 kg block is released from rest at the top of a rough inclined plane that makes an angle of 30° with the horizontal. The length of the plane is 8.0 m and the coefficient of kinetic friction between the block and the plane is 0.20. At the bottom of the plane the block compresses a horizontal spring of force constant 400 N·m⁻¹ until it momentarily comes to rest. Using the work‑energy principle, answer the following:

Question Parts

( a )

Calculate the work done by gravity on the block while it moves down the plane.

( b )

Calculate the work done by the kinetic friction force during the descent.

( c )

Determine the maximum compression x of the spring when the block comes to rest at the bottom.

( d )

A motor now lifts the block back up the same plane at constant speed in 4.0 s. Find the average power output of the motor.

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About This Question

This is Neco Model Questions Vol1 2017 Physics Question 5. It is one of the essay questions from the 2017 Neco Model Questions Vol1 Physics examination.

The question covers Work, Energy, Power, Friction, Spring potential energy .

View More Neco Model Questions Vol1 2017 Physics Questions More Neco Model Questions Vol1 Practice Questions Back to Questions

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