Free Help in Physics for Class 11 & 12
A car starts motion from rest at uniform acceleration of 2m/sec 2 for 3 seconds, and then it maintains a constant speed for 2 seconds.Then the breaks are used to decelerate the car uniformly to rest during a time of 3 seconds. Draw the graph representing the journey of the car then calculate 1)the maximum speed … Continue reading A Numerical Problem from Kinematics
Sir ir it true or false – “the speed of particle remains constant.this means that no unbalanced force acts on it.” (Purshkar asks) Answer: If velocity remains constant, then we can say that no unbalanced force acts on it. If a body moves with uniform speed with its direction changing with time, as in the case [...]
Newton’s Laws of motion First Law: Every body continues to be in its state of rest or state of uniform motion in a straight line unless an external force complels it to do so. Second Law: The rate of change of momentum of a body is directly proportional to the net external force acting on [...]
A body falling freely from rest has velocity v after it falls a height h . Calculate the distance it should fall down further for its velocity to become double A particle in uniform acceleration in a straight line has a speed of v m/s at position x meter is given by √(25-16x). What is [...]
