Neco 2024 Physics Question 21

Practice objective / multiple choice question 21 from the 2024 Neco Physics examination.

Neco 2024 Physics Objective / Multiple Choice Medium Difficulty
Question 21 NECO • 2024 • PHYSICS • objective

A block of mass \(2.0\ \text{kg}\) starts from rest at the top of a frictionless incline that is \(5.0\ \text{m}\) high. It slides down, then immediately enters a horizontal rough surface of length \(3.0\ \text{m}\) with coefficient of kinetic friction \(\mu = 0.30\), and finally contacts a horizontal spring of force constant \(k = 200\ \text{N m}^{-1}\) fixed to a wall. Assuming the block comes to rest after compressing the spring, find (a) the speed of the block just before it reaches the spring, and (b) the maximum compression of the spring.

Answer Options

A. a) \\(9.06\\ \text{m s}^{-1}\\), b) \\(0.91\\ \text{m}\\)
Correct Answer B. a) \(8.97\ \text{m s}^{-1}\), b) \(0.90\ \text{m}\)
C. a) \\(9.90\\ \text{m s}^{-1}\\), b) \\(0.99\\ \text{m}\\)
D. a) \\(9.29\\ \text{m s}^{-1}\\), b) \\(0.93\\ \text{m}\\)
Correct Answer
B
Correct Option:
a) \(8.97\ \text{m s}^{-1}\), b) \(0.90\ \text{m}\)

About This Question

This is Neco 2024 Physics Question 21. It is one of the objective questions from the 2024 Neco Physics examination.

Difficulty level: Medium .

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