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A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
Sentences of a paragraph are given below in jumbled order. Arrange the sentences in the right order to form a meaningful and coherent paragraph. A. But a dove that happened to be sitting on a neighbouring tree saw the ant’s danger and, plucking off a leaf, let it drop into the water before him. B. Just at that time, a fowler was spreading his net and was in the act of ensnaring the dove, when the ant, perceiving his object, bit his heel. C. An ant went to a fountain to quench his thirst and, tumbling in, almost drowned. D. The ant mounting upon it, was presently wafted safely ashore.
There are 47 people walking on the road one by one. Hardik is walking at the 23rd place from the front. Sam is walking at the 31st place from the back. There are 2 people walking between Sam and Manoj. Manoj is walking behind Sam. How many people are between Hardik and Manoj?
There are 47 peoples are walking on the road one by one. Hardik is walking at the 23rd place from the front. Sam is walking at the 31st place from the back. There are 2 peoples walking between Sam and Manoj. Manoj is walking behind Sam. How many peoples are between Hardik and Manoj?
A heavy box of mass 20 kg is pulled on a horizontal surface by applying a horizontal force. If the coefficient of kinetic friction between the box and the horizontal surface is 0.25, find the force of friction exerted by the horizontal surface on the box.
Athletes who love only walking are 20 more than those who love only running which is half of those who love only jogging. Athletes who love all the three are 20 which is 40% of those who love only walking and athletes who love both walking and running but not jogging is 25% of those who love only jogging, then how many love both walking and running?
Which of the following are parameters of an effective communication? (A) Freedom to see and hear. What is here? (B) Freedom to say. What one thinks and feels? (C) Freedom to decide. What should be, was, are, will be? (D) Freedom to feel. What one feels? (E) Freedom of always waiting for permission. Choose the correct answer from the options given below :
A scientist is studying the behaviour of an ant. The ant picks food and walks 5 cm North, then it turns to its right and walks for another 11 cm. then it turns right and walks 3 cm, then it turns West and walks 15 cm, then finally it turns to its left and walks 2 cm. Where is the ant now with respect to its starting point?
An ant is at the bottom-left corner of a grid (point P) as shown above. It aims to move to the top-right corner of the grid. The ant moves only along the lines marked in the grid such that the current distance to the top-right corner strictly decreases. Which one of the following is a part of a possible trajectory of the ant during the movement?