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Explain Newtons second law of motion terms of its components of force. Physics Cbse class 11 1 Answer. State Newtons law of gravitation. Show that for a two particle system gravitational force -Physics Cbse class 11 1 AnswerGravitational force on the surface of the Moon is only 1/6 as strong as gravitational force on the Earth. What is the weight in newtons of a 10 kg object on the Moon and on the Earth? - Physics Cbse class 11 1 AnswerAn archer stretches her bow while taking aim at the target. She then releases the arrow, which begins to move towards the target. Based on this information fill up the gaps in the following statements using the following terms. cbse-class8-physics-20151 AnswerFor uniform circular motion, does the direction of centripital force depend only on sense of rotation i.e. clockwise or anticlockwise direction? -Physics Cbse class 11 1 AnswerDefine uniform circular motion. Derive expression for centripetal acceleration. What is the direction of centripetal acceleration. Express it in terms of angular speed. Physics Cbse class 11 1 AnswerAccording to the third law of motion when we push on an object, the object pushes back on us with an equal and opposite force. If the object is a massive truck parked along the roadside, it will probably not move. A student justifies this by answering that the two opposite and equal forces cancel each other. Comment on this logic and explain why the truck does not move. - Physics Cbse class 11 1 AnswerA hockey ball of mass 200 g travelling at 10 ms-1 is struck by a hockey stick so as to return it along its original path with a velocity at 5 ms-1. Calculate the change of momentum occurred in the motion of the hockey ball by the force applied by the hockey stick. - Physics Cbse class 11 1 AnswerDuring the ground roll manoeuvre of an aircraft, the force(s) acting on it parallel to the direction of motion GATE-Aerospace Engineering-Question-20121 AnswerFill in the blanks: (Science-Ncert class 6)1 AnswerA batsman hits a cricket ball which then rolls on a level ground. After covering a short distance, the ball comes to rest. The ball slows to a stop because - Physics Cbse class 11 1 AnswerCertain force acting on a 20 kg mass changes its velocity from 5 m/s to 2 m/ s. Calculate the work done by the force. - Physics Cbse class 11 1 AnswerWhat does the path of an object look like when it is in uniform motion? - Physics Cbse class 11 0 Answer Draw velocity time graph for motion with constant acceleration when motion is in negative direction with negative acceleration. -Physics Cbse class 11 0 AnswerWhy does a current carrying conductor kept in a magnetic field experience force? what factors does the direction of this force depend? Name and state the rule used for determination of direction of this force. -CBSE physics class 101 AnswerWhat is central force? Give any two important consequences for central force. -Physics Cbse class 11 1 AnswerThe Earth and the Moon are attracted to each other by gravitational force. Does the Earth attract the Moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?- - Physics Cbse class 11 1 AnswerWhen can an object in motion be considered as a point object? -Physics CBSE class 111 AnswerObtain the equations of motion for constant acceleration using method of calculus. -Physics Cbse class 11 0 AnswerWrite the similarities and differences between the motion of a bicycle and a ceiling fan that has been switched on.(Science-Ncert class 6)1 Answer