A ball of mass 5.0kg hits a smooth vertical wall normally with a speed of 2ms−¹ and rebounds with the same speed. Determine the impulse experienced by the ball?
A. 20.0kg ms−¹ B. 10.0kg ms−¹ C. 5.0kg ms−¹ D. 1.3kg ms−¹ E. 0.0kg ms−¹ Correct Answer: Option A – 20.0kg ms−¹ Explanation Impulse = Ft = mu – (-mu) = mu + mu = 2mu = 2 x 5 x 2 =...
The diagram above illustrates the velocity-time graph of the motion of a body. Calculate the total distance covered by the body?
A. 50m B. 65m C. 175m D. 225m E. 300m Correct Answer: Option D – 225m Explanation Distance of A = 1/2 x (10 + 20) x 5 = 1/2 x 30 x 5 = 75m. Distance of B = 20 x 5 = 100m Distance of C = 1/2 x 5 x 20 = 50/225 ∴ Total distance is...
A loaded test-tube which floats upright in water is carefully and slightly depressed and then released. Which of the following best describes the sub-sequent motion of the test-tube?
A. Circular B. Rotational C. Random D. Oscillatory E. Translational Correct Answer: Option D – Oscillatory
In a nuclear reaction, the mass defect is 2 x 10^−6g. Calculate the energy released given that the velocity of light is 3 x 108ms−¹
A. 9 x 10^7J B. 1.8 x 10^8J C. 1.8 x 10^9J D. 9 x 10^−10J E. 3.6 x 10^11J Correct Answer: Option B – 1.8 x 10^8JProducts
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Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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Co-Ownership Structures and Land Acquisition Methods in Nigeria
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Rights in Community Land and Fundamental Land Concepts in Nigeria
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Customary Land Control and the Origins of Nigeria's Land Use Act
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Land Ownership Principles and Transaction Laws in Nigeria
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