# gravitation

### Physics problems for class 9 – numericals with solutions

##### Force Gravitation Motion Newton's Law of Motion Question Set with Numerical Problems

Physics problems for class 9 (CBSE)–numericals set1 This set of Physics problems for class 9 students of CBSE/ICSE/HS boards cover Newton’s Laws of motion, Force, linear motion equations and Gravitation. Hope the students will like this set and try to solve the numerical problems themselves. I am providing the solutions as well, but you should

### Escape velocity – Definition, Derivation of equation and Values

##### Gravitation

Escape velocity  From the term Escape Velocity itself we get an idea of its definition. It’s a velocity that helps to escape – isn’t it? But Escape from what and how? Should we use the term velocity or we should use the term speed? This is what we are going to discuss today in our

### A stone falls towards the earth but the opposite is not observed-why?

##### Gravitation

A stone falls towards the earth – why? A stone falls back on the ground. But the earth doesn’t seem to move towards it. Why? As said by this law of universal gravitation every object in this universe is attracting every other object towards it. This force of gravitational attraction between any two objects in

### What will happen to a ball thrown vertically upwards?

##### Gravitation Motion

Motion of a ball thrown vertically upwards You must have seen someone throwing a ball vertically upwards or probably you have thrown it yourself. Yes, the ball goes up for a while and then stops and starts to come down and touches the ground with a bang if you can’t catch it. Let’s discuss the phases

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