### Why gravitational acceleration is different in different places on Earth?

Changes with time. The gravitational potential at the surface of Earth is due mainly to the mass and rotation of Earth, but there are also small contributions from the distant Sun and Moon. As Earth rotates, those small contributions at any one place vary with time, and so the local value of g varies slightly.

### How does the acceleration of gravity vary on Earth?

Gravity on the Earth’s surface varies by around 0.7%, from 9.7639 m/s2 on the Nevado Huascarán mountain in Peru to 9.8337 m/s2 at the surface of the Arctic Ocean.

### Why acceleration due to gravity is not same at all places?

No, the value of g is different at different places on the surface of earth. Due to which the radius of the earth is smaller at poles and is larger at equator. therefore the acceleration due to gravity is smaller at equator than that at poles.

### How does gravitational acceleration vary with different heights?

The acceleration of an object changes with altitude. The change in gravitational acceleration with distance from the centre of Earth follows an inverse-square law. This means that gravitational acceleration is inversely proportional to the square of the distance from the centre of Earth.

### Does g increase with height?

Variation of g with Height

This is the acceleration due to gravity at a height above the surface of the earth. Observing the above formula we can say that the value of g decreases with increase in height of an object and the value of g becomes zero at infinite distance from the earth.

### Does acceleration increase with height?

Acceleration is directly proportional to the height of the object.

### Where is acceleration due to gravity is maximum?

Where, g is the acceleration due to gravity on the surface of the earth. g’ = g Thus acceleration due to gravity is least at the equator and maximum at the poles.

### Does force affect acceleration?

The acceleration of an object depends directly upon the net force acting upon the object, and inversely upon the mass of the object. As the force acting upon an object is increased, the acceleration of the object is increased. As the mass of an object is increased, the acceleration of the object is decreased.

### What is the acceleration of the ball at its maximum height?

Question: A ball thrown vertically upward reaches a maximum height of 30 meters above the surface of Earth. At its maximum height, the speed of the ball is: Answer: 0 m/s. The instantaneous speed of any projectile at its maximum height is zero.

Objects Launched Upward.

VariableValue
a-9.8 m/s2
t0.40 s

### What is the acceleration of the ball after 1 second?

So after one second, the acceleration of the ball is 9.8 m/s² and its velocity is 9.8 m/s. When you throw the ball upward, that acceleration is still 9.8 m/s².

### At what other angle should a ball be hit to reach the same distance?

Trajectories at 60° and 30° angle will have the same distance if they have the same initial velocity. 45° angle will reach the highest range if given the same initial velocity.

### What will be the velocity and acceleration of ball upward at maximum height?

Therefore, velocity at the top is zero and acceleration is acceleration due to gravity (g).

### Does throwing an object down increase acceleration?

The velocity of an object increases when we drop it down. This indicates that the object accelerates. This is due to the attractive force of gravity. The value of g varies over the earth because the earth is not a perfect sphere and because of the rotation of the earth.

### What is the acceleration of a rock thrown straight upward on the way up?

What is the acceleration of a rock thrown straight upward on the way up? At the top of its flight? On the way down? The acceleration of the rock thrown upward has the same value of – 9.8 m/s^2 downwards at all three points of the rock on way up, stationary at the top of its flight and on way down.

### What is the final velocity of the ball?

The ball moves up to a maximum point, then reverses and falls to the ground. The final velocity of the ball is vf = -14.7 m/s, taking down to be the negative direction.

### Is V initial or final velocity?

It is represented by letter u. Three initial velocity formulas based on equations of motion are given below, If time, acceleration and velocity are known. The initial velocity is formulated as.

Formulas for Initial Velocity.

uInitial velocity
vFinal Velocity
ttime taken
sdisplacement
aacceleration

### Can initial velocity be zero?

Well if an object starts from rest then it’s initial velocity would be zero however if it is already in motion then it does have an initial velocity of greater than zero.

### What is the symbol used for acceleration initial velocity and final velocity?

The symbol a stands for the acceleration of the object. And the symbol v stands for the velocity of the object; a subscript of i after the v (as in vi) indicates that the velocity value is the initial velocity value and a subscript of f (as in vf) indicates that the velocity value is the final velocity value.

### What are the 5 equations of motion?

In circumstances of constant acceleration, these simpler equations of motion are usually referred to as the “SUVAT” equations, arising from the definitions of kinematic quantities: displacement (S), initial velocity (u), final velocity (v), acceleration (a), and time (t).

### What is the relationship between velocity and acceleration?

Velocity is the rate of change of position with respect to time, whereas acceleration is the rate of change of velocity. Both are vector quantities (and so also have a specified direction), but the units of velocity are meters per second while the units of acceleration are meters per second squared.

### What is symbol of initial velocity?

The symbol v0 [vee nought] is called the initial velocity or the velocity a time t = 0. It is often thought of as the “first velocity” but this is a rather naive way to describe it.

### What does U mean in velocity?

u is initial velocity in m/s. t is time in s. For example, a car accelerates in 5 s from 25 m/s to 3 5m/s. Its velocity changes by 35 – 25 = 10 m/s.

### What are the 4 equations of motion?

They are often referred to as the SUVAT equations, where “SUVAT” is an acronym from the variables: s = displacement, u = initial velocity, v = final velocity, a = acceleration, t = time.