Neco Model Questions Vol1 2025 Physics Question 39
Practice objective / multiple choice question 39 from the 2025 Neco Model Questions Vol1 Physics examination.
A \(400\ \text{kg}\) cart is pulled up a straight incline that makes an angle of \(19.5^{\circ}\) with the horizontal. The coefficient of kinetic friction between the cart and the incline is \(0.20\). The cart moves up the incline at a constant speed of \(5.0\ \text{m·s}^{-1}\).\n\n(a) Determine the magnitude of the pulling force required (in newtons).\n(b) Calculate the mechanical power output of the pulling device in kilowatts (kW).\n(c) If the device operates at an efficiency of 85 %, find the electrical power that must be supplied (in kW, to two significant figures).
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About This Question
This is Neco Model Questions Vol1 2025 Physics Question 39. It is one of the objective questions from the 2025 Neco Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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