Igcse Model Questions Vol1 2020 Physics Question 6

Practice objective / multiple choice question 6 from the 2020 Igcse Model Questions Vol1 Physics examination.

Igcse Model Questions Vol1 2020 Physics Objective / Multiple Choice Medium Difficulty
Question 6 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • objective

The diagram shows an inclined plane of length \(4.0\) m making an angle of \(30^{\circ}\) with the horizontal. A block of mass \(1.5\) kg is attached to a spring of constant \(300\) N m\(^{-1}\) fixed at the top of the incline. The spring is compressed by \(0.20\) m when the block is held at the top and then released. The surface is frictionless. \(\text{(i)}\) Calculate the speed of the block when it reaches the bottom of the incline. \(\text{(ii)}\) Assuming the block travels the whole length of the incline, find the average power delivered by the spring during the motion.

Answer Options

Correct Answer A. Speed \(=6.9\) m s\(^{-1}\); average power \(=5.2\) W
B. Speed \(=6.2\) m s\(^{-1}\); average power \(=5.9\) W
C. Speed \(=5.8\) m s\(^{-1}\); average power \(=4.1\) W
D. Speed \(=7.4\) m s\(^{-1}\); average power \(=6.8\) W
Correct Answer
A
Correct Option:
Speed \(=6.9\) m s\(^{-1}\); average power \(=5.2\) W

About This Question

This is Igcse Model Questions Vol1 2020 Physics Question 6. It is one of the objective questions from the 2020 Igcse Model Questions Vol1 Physics examination.

Difficulty level: Medium .

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