Table of Contents

## What is the initial velocity of a stone which is dropped from a height to the ground?

0 m/s.

If an object is merely dropped (as opposed to being thrown) from an elevated height, then the initial velocity of the object is 0 m/s.

**What is the speed of the stone before it hits the ground?**

90 ms−1.

**How do you find the velocity of an object when it hits the ground?**

Multiply the time by the acceleration due to gravity to find the velocity when the object hits the ground. If it takes 9.9 seconds for the object to hit the ground, its velocity is (1.01 s)*(9.8 m/s^2), or 9.9 m/s.

### What is the velocity of a dropped object after it has fallen for 12 s?

g=acceleration due to gravity. HENCE VELOCITY AFTER 12 SECONDS OF THE OBJECT IS 120 M/S.

**What is the velocity of an object dropped from a height of 100 m when it hits the ground?**

its velocity at the moment it touches the ground its answer is : 140 m/sec

**What happens when you drop the stone in the ground?**

Answer: When the stone is dropped, there will be presence of gravity of Earth. The more the mass the object is, gravity will increase exponentially. Also, to explain mass, mass is the amount of matter inside the object.

## How fast does a stone fall?

Gravity makes things accelerate if they are dropped. If a stone was dropped from a high building on the Earth its velocity would be about 10m/s after falling for 1 second, about 20 m/s after two seconds, about 30 m/s after three seconds and so on.

**What was the stone’s impact speed?**

(b) We can find the speed of the stone at impact from another kinematic equation: v=v_0+gt=11.0 m/s-9.8 m/s^2 ∙4.48 s=-32.9 m/s.

**How do you calculate the velocity of a falling object?**

To find out something’s speed (or velocity) after a certain amount of time, you just multiply the acceleration of gravity by the amount of time since it was let go of. So you get: velocity = -9.81 m/s^2 * time, or V = gt. The negative sign just means that the object is moving downwards.

### What is the velocity of a dropped object?

Velocity of a Falling Object: v = g*t A falling object is acted on by the force of gravity: -9.81 m/s2 (32 ft/s2). Gravity will accelerate a falling object, increasing its velocity by 9.81 m/s2 (or or 32 ft/s2) for every second it experiences free fall.

**What is the velocity after falling?**

Gravity accelerates you at 9.8 meters per second per second. After one second, you’re falling 9.8 m/s. After two seconds, you’re falling 19.6 m/s, and so on.

**What is the speed of a falling stone?**

So its initial speed, let’s call it u, is zero, i.e. u = 0 m/s. As the stone is falling, it’ll speed up due to gravity. Let’s call that acceleration g. On the Earth’s surface (i.e. at sea level) and even 90 m above it, it’ll be roughly true that the free falling stone will speed up by 9.81 m/s each second.

## What is the initial velocity of a projectile?

14) A projectile is fired at time t = 0.0s, from point O at the edge of a cliff, with initial velocity 70 m/ s and v = 500 m/ s. The projectile rises, then falls into the components of vox = sea at point P.

**How does the speed of a ball increase as it falls?**

If you drop a ball from the top of a building it gains speed as it falls. Every second, its speed increases by 10 m/s. Also it does not fall equal distances in equal time intervals Simplest case is acceleration = 0

**What happens when you let go of a stone?**

The split second that we first let go of the stone, it’ll have no speed at all. So its initial speed, let’s call it u, is zero, i.e. u = 0 m/s. As the stone is falling, it’ll speed up due to gravity. Let’s call that acceleration g.