Physics Past QuestionsQuestion 4716:A force of \(0.6 N\) acts on a body of mass \(40 kg\), initially at rest. What is the resulting acceleration? A. \(24 m / s 2\) B. \(0.6 m / s 2\) C. \(40 m / s 2\) D. \(15 m / s 2\) Question 4717:An object of mass \(10 kg\) is pulled over a rough surface by a \(20 N\) force. The object accelerates at a rate of \(1.5 m / s 2\). Determine the frictional force between the object and the surface. A. \(30 N\) B. \(20 N\) C. \(2 N\) D. \(5 N\) Question 4718:A body of mass \(2 kg\), moving with velocity \(5 m / s\) collides with stationary body of mass \(0.5 kg\) if the two bodies move together after impact. Calculate their common velocity. A. \(10 m / s 2\) B. \(4 m / s 2\) C. \(2.5 m / s\) D. \(0.5 m / s 2\) Question 4719:A body of mass \(200 g\) and specific heat capacity \(0.4\) \(J / g . K\) cools from \(370 C\) to \(310< C >\) Calculate the quantity of heat released by the body. A. \(4800 J\) B. \(1200 J\) C. \(480 J\) D. \(202 J\) Question 4720:The length of mercury thread when it is at \(0 \circ C\), \(1000 C\) and unknown temperature XoC is \(200 mm\), \(220 mm\) and \(270 mm\) respectively. Determine the value of \(X\). A. \(3500 C\) B. \(57 \circ C\) C. \(133 \circ C\) D. \(300 \circ C\) |
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