Heavier things have a greater gravitational force AND heavier things have a lower acceleration. It turns out that these two effects exactly cancel to make falling objects have the same acceleration regardless of mass.

Therefore, if the distance between two masses be doubled, then the force between will becomes 1/4.

Increasing the separation distance between objects decreases the force of attraction or repulsion between the objects. And decreasing the separation distance between objects increases the force of attraction or repulsion between the objects. Electrostatic force and distance are inversely related.

This equation shows the relationship between speed, distance traveled and time taken: Speed is distance divided by the time taken. For example, a car travels 30 kilometers in 2 hours. Its speed is 30 ÷ 2 = 15km/hr.

If someone is moving away from you at 1 meter per second, the distance away from you changes by one meter every second. If the velocity is constant, then the second derivative will be zero. Zero acceleration means that the velocity is not changing.

This means that gravitational acceleration is inversely proportional to the square of the distance from the centre of Earth. As the distance is doubled, the gravitational acceleration decreases by a factor of 4. As the distance is tripled, the gravitational acceleration decreases by a factor of 9, and so on.

The increase in displacement (height/distance) each time is the reason that the time to fall increases with each trial. d=vit+12at2 , where d =displacement (distance/height), vi =initial velocity, a =acceleration, and t =time.

How to find the maximum height of a projectile?

1. if α = 90°, then the formula simplifies to: hmax = h + V₀² / (2 * g) and the time of flight is the longest.
2. if α = 45°, then the equation may be written as:
3. if α = 0°, then vertical velocity is equal to 0 (Vy = 0), and that’s the case of horizontal projectile motion.