Neco 2024 Physics Question 25

Practice objective / multiple choice question 25 from the 2024 Neco Physics examination.

Neco 2024 Physics Objective / Multiple Choice Medium Difficulty
Question 25 NECO • 2024 • PHYSICS • objective

A motor of rated power \(P_{\text{max}} = 1500\ \text{W}\) is used to lift a load of mass \(m = 120\ \text{kg}\). The load is first accelerated from rest with a constant acceleration for \(t_1 = 5\ \text{s}\), after which it moves upward at the constant speed attained. Determine (a) the greatest possible constant acceleration \(a\) that does not cause the motor power to exceed its rating at any time, (b) the speed of the load at the end of the acceleration phase, and (c) the total distance the load rises in a total time of \(20\ \text{s}\).

Answer Options

A. a) \(0.30\ \text{m s}^{-2}\), b) \(1.50\ \text{m s}^{-1}\), c) \(24.0\ \text{m}\)
Correct Answer B. a) \(0.25\ \text{m s}^{-2}\), b) \(1.25\ \text{m s}^{-1}\), c) \(21.9\ \text{m}\)
C. a) \(0.22\ \text{m s}^{-2}\), b) \(1.10\ \text{m s}^{-1}\), c) \(22.0\ \text{m}\)
D. a) \(0.20\ \text{m s}^{-2}\), b) \(1.00\ \text{m s}^{-1}\), c) \(20.0\ \text{m}\)
Correct Answer
B
Correct Option:
a) \(0.25\ \text{m s}^{-2}\), b) \(1.25\ \text{m s}^{-1}\), c) \(21.9\ \text{m}\)

About This Question

This is Neco 2024 Physics Question 25. It is one of the objective questions from the 2024 Neco Physics examination.

Difficulty level: Medium .

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