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When can an object in motion be considered as a point object? -Physics CBSE class 111 AnswerWhat does the path of an object look like when it is in uniform motion? - Physics Cbse class 11 1 AnswerAn object of mass m is moving in a circular motion of radius r at a constant speed v. Obtain an expression for the magnitude of acceleration of the object. -Physics CBSE class 111 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 AnswerWhat is the nature of the distance-time graphs for uniform and non-uniform motion of an object? - Physics Cbse class 11 1 AnswerWhat can you say about the motion of an object if its speed-time graph is a straight line parallel to the time axis? - Physics Cbse class 11 1 AnswerWhat can you say about the motion of an object whose distance-time graph is a straight line parallel to the time axis? - Physics Cbse class 11 1 AnswerAn interstellar object has speed 𝑣 at the point of its shortest distance 𝑅 from a star of much larger mass 𝑀. Given 𝑣2=2 𝐺𝑀/𝑅, the trajectory of the object is0 AnswerA mass of 10 kg is at a point A on a table. It is moved to a point B. If the line joining A and B is horizontal, what is the work done on the object by the gravitational force? Explain your answer. - Physics Cbse class 11 1 AnswerAn object of mass 100 kg is accelerated uniformly from a velocity of 5 ms-1 to 8 ms-1 in 6 s. Calculate the initial and final momentum of the object. Also, find the magnitude of the force exerted on the object. - Physics Cbse class 11 1 Answer. Draw (a) position time graph for an object for an object with negative velocity, -Physics Cbse class 11 1 Answer Where will the image be formed by concave mirror when an object is placed between the pole and the focus point of the mirror ? -2005 CBSE Physic class 101 AnswerAn object thrown at a certain angle to the ground moves in a curved path and falls back to the ground. The initial and the final points of the path of the object lie on the same horizontal line. What is the work done by the force of gravity on the object? - Physics Cbse class 11 1 AnswerGravitational force acts on all objects in proportion to their masses. Why then, a heavy object does not fall faster than a light object? - Physics Cbse class 11 1 AnswerA 2.0 cm tall object is placed perpendicular to the principal axis of a convex lens of focal length 10 cm. The distance of the object from the lens is 15 cm. Find the nature, position and size of the image. Also find its magnification. -CBSE Physics1 AnswerWhat is the kinetic energy of an object? - Physics Cbse class 11 1 AnswerTwo objects of masses 100 g and 200 g are moving along the same line and direction with velocities of 2 m s-1 and 1 m s-1, respectively. They collide and after the collision, the first object moves at a velocity of 1.67 m s-1. Determine the velocity of the second object. - Physics Cbse class 11 1 AnswerTwo objects, each of mass 1.5 kg are moving in the same straight line but in opposite directions. The velocity of each object is 2.5 m s-1 before the collision during which they stick together. What will be the velocity of the combined object after collision? - Physics Cbse class 11 1 AnswerAn object experiences a net zero external unbalanced force. Is it possible for the object to be travelling with a non-zero velocity? If yes, state the conditions that must be placed on the magnitude and direction of the velocity. If no, provide a reason. - Physics Cbse class 11 1 AnswerWhat are the differences between the mass of an object and its weight? - Physics Cbse class 11 1 Answer