Neco 2020 Physics Question 5

Practice essay / theory question 5 from the 2020 Neco Physics examination. This question covers Work, Energy, Power, Kinematics .

Neco 2020 Physics Essay / Theory

Topics: Work Energy Power Kinematics

Question 5 NECO • 2020 • PHYSICS • essay

A 1500 kg car starts from rest at the bottom of a uniform hill that makes an angle of 5° with the horizontal and is 200 m long along the slope. The car's engine delivers a constant power of 30 kW. Air resistance and rolling resistance are negligible.

( a )

Calculate the total work done by the engine in moving the car from the bottom to the top of the hill.

( b )

Using the power supplied, find the speed of the car when it reaches the top of the hill.

( c )

If 10% of the engine's power is lost as heat, recalculate the speed of the car at the top of the hill.

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This is Neco 2020 Physics Question 5. It is one of the essay questions from the 2020 Neco Physics examination.

The question covers Work, Energy, Power, Kinematics .

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