Neco 2018 Physics Question 4

Practice essay / theory question 4 from the 2018 Neco Physics examination. This question covers forces, Newton's laws, friction, work and energy .

Neco 2018 Physics Essay / Theory

Topics: forces Newton's laws friction work and energy

Question 4 NECO • 2018 • PHYSICS • essay

A 10 kg block rests on a rough horizontal floor. It is pulled by a rope that makes an angle of 30\(^\circ\) above the horizontal. The coefficient of kinetic friction between the block and the floor is 0.30. The block is required to accelerate horizontally at 2.0 m s\(^{-2}\). The rope tension is unknown. The block moves a horizontal distance of 5.0 m while the rope is pulling.

Question Parts

( a )

Determine the magnitude of the tension in the rope required to produce the stated acceleration.

( b )

Using the tension found in part (a), calculate the magnitude of the normal reaction exerted by the floor on the block.

( c )

Find the magnitude of the kinetic frictional force acting on the block.

( d )

If the block moves 5.0 m horizontally while the rope pulls, calculate the work done by the tension force.

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About This Question

This is Neco 2018 Physics Question 4. It is one of the essay questions from the 2018 Neco Physics examination.

The question covers forces, Newton's laws, friction, work and energy .

View More Neco 2018 Physics Questions More Neco Practice Questions Back to Questions

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