motions

Suppose a body is undergoing circular motion about a circle of radius r, with an angular velocity w rad/s as shown in the figure. From geometry, we can observe that the corresponding distance travelled in 1 second is equal to r w . Since the distance travelled in 1 second is velocity, ..

Summary - Motion: Whenever a body changes its position continuously with respect to the position of other bodies around it then it is said to be in motion. Rest: An object which does not change its position with respect to its surroundings is said to be at rest. Distance: It is the a..

The variable quantities in a uniformly accelerated rectilinear motion are time, speed, distance covered and acceleration. Simple relations exist between these quantities. These relations are expressed in terms of equations called equations of motion The equations of motionh..

The first equation of motion is v = u + at. v - u = at ... (1) From equation (2) and equation (3) we get, Multiplying equation (1) and equation (4) we get, (v - u) (v + u) = 2aS [We make use of the identity a 2 - b 2 = (a + b) (a - b)] v 2 - u 2 = 2aS III eq..

Kinematics..

The first equation of motion is v = u + at. v - u = at ... (1) From equation (2) and equation (3) we get, Multiplying eq (1) and eq (4) we get, [We make use of the identity a 2 - b 2 = (a + b) (a - b)] v 2 - u 2 = 2as III equation of motion..

Uniform Circular Motion - The revolution of moon around the Earth and the revolution of an artificial satellite in a circular orbit round the Earth are examples of circular motion. Consider a particle moving with constant speed along the circumference of a circle of radius R in ..

Let 'u' be the initial velocity of an object and a be the acceleration produced in the body. The distance travelled 's' in time 't' is given by the area enclosed by the v - t graph. S = area of the trapezium OABD. ..

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Imagine yourself sitting in a seat while travelling in a moving train. You observe no change in position with respect to the window. There is change of scene when you view through the window. The change of scene indicates that the train is movi..