# Month: October 2015

## Newton’s Second Law of Motion For Class 9

Newton’s Second law of motion: It states that rate of change of momentum is directly proportional to unbalance external force. And change of momentum is in the direction of unbalance force.Mathematical Derivation:

## Newton’s First Law of Motion Class 9 | Law of Inertia

Newton’s First Laws of Motion { Law of Inertia }- It states that a body continue in its state of rest or of uniform motion until it is comepelled by any external unbalance forces. This laws is also known as law of inertia. Inertia is the proerty of a body which cause it to maintain…

## List of Hindi Difficult Words

Learning Hindi is easy if we are going in right way. Many of us are struggling for Hindi learning. We already have created Youtube videos for learning hindi . However We need practice to write correctly. This is the list of Hindi words in which a student of class 5 have created mistakes are. This…

## In triangle ABC, AB > AC. | E is the mid-point of BC | and AD is perpendicular to BC

In triangle ABC, AB > AC. E is the mid-point of BC and AD is perpendicular to BC. Prove that AB2 + AC2 = 2.AE2 + 2.BE2 Solution:In ∆ ABD AB2 = AD 2 + BD 2 Or AB2 = AD 2 + (BE + ED ) 2 Or AB2 = AD 2 + BE…