Waec Model Questions Vol1 2022 Physics Question 5

Practice essay / theory question 5 from the 2022 Waec Model Questions Vol1 Physics examination. This question covers Work, Energy, Power, Friction .

Waec Model Questions Vol1 2022 Physics Essay / Theory

Topics: Work Energy Power Friction

Question 5 WAEC_MODEL_QUESTIONS_VOL1 • 2022 • PHYSICS • essay

A 2.0 kg block is released from rest at the top of an inclined plane that is 5.0 m long and makes an angle of 30° with the horizontal. The surface of the plane is rough with a coefficient of kinetic friction \(\mu_k = 0.20\).

Question Parts

( a )

Calculate the work done by the gravitational force on the block as it moves down the plane.

( b )

Determine the magnitude of the kinetic friction force and the work done by friction over the 5.0 m displacement.

( c )

After reaching the bottom, the block is pulled upward along the same incline at a constant speed of 4.0 m s⁻¹ by a motor. Find the power that the motor must supply to maintain this motion.

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About This Question

This is Waec Model Questions Vol1 2022 Physics Question 5. It is one of the essay questions from the 2022 Waec Model Questions Vol1 Physics examination.

The question covers Work, Energy, Power, Friction .

View More Waec Model Questions Vol1 2022 Physics Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

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