Gce Model Questions Vol1 2017 Physics Question 26

Practice objective / multiple choice question 26 from the 2017 Gce Model Questions Vol1 Physics examination.

Gce Model Questions Vol1 2017 Physics Objective / Multiple Choice Medium Difficulty
Question 26 GCE_MODEL_QUESTIONS_VOL1 • 2017 • PHYSICS • objective

A 5.0 kg block starts from rest at the top of a 4.0 m long rough incline that makes an angle of \(30^{\circ}\) with the horizontal. The coefficient of kinetic friction between the block and the incline is 0.20. At the bottom of the incline the block compresses a horizontal spring of force constant \(800\ \text{N\,m}^{-1}\) until it momentarily comes to rest. Assuming \(g = 9.8\ \text{m\,s}^{-2}\), calculate the average power delivered by gravity during the block's motion down the incline. Give your answer in watts to two significant figures.

Answer Options

Correct Answer A. 62 W
B. 58 W
C. 45 W
D. 70 W
Correct Answer
A
Correct Option:
62 W

About This Question

This is Gce Model Questions Vol1 2017 Physics Question 26. It is one of the objective questions from the 2017 Gce Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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