Gce Model Questions Vol1 2025 Physics Question 44
Practice objective / multiple choice question 44 from the 2025 Gce Model Questions Vol1 Physics examination.
A \(5.0\) kg block starts from rest at the top of a \(6.0\) m long rough incline that makes an angle of \(30^{\circ}\) with the horizontal. The coefficient of kinetic friction is \(\mu_k = 0.25\). The block slides down, and a motor attached to the block applies a constant braking force opposite the motion so that the block comes to rest exactly \(2.0\) m before the bottom of the incline. Determine (i) the speed of the block just before the motor starts braking, (ii) the magnitude of the braking force, and (iii) the power output of the motor when the block's speed is half of that initial speed.
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About This Question
This is Gce Model Questions Vol1 2025 Physics Question 44. It is one of the objective questions from the 2025 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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