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Why velocity is non zero when ball dropped to the ground?
The initial velocity of a dropped ball is zero in the y (up-down) direction. After it is dropped gravity causes an acceleration, which causes the velocity to increase. F = ma, The acceleration due to gravity creates a force on the mass of the ball.
A projectile is fired horizontally from a gun that is 71.0 m above flat ground emerging from the gun with a speed of 250 ms What is the magnitude of the vertical component of its velocity as it st?
If it's fired horizontally, then its initial vertical velocity is zero. After that, the vertical velocityincreases by 9.8 meters per second every second, directed downward, and the projectile hitsthe ground after roughly 3.8 seconds.Exactly the same vertical motion as if it were dropped from the gun muzzle, with no horizontal velocity.
Why does building foundations have a large horizontal area of contact with the ground?
Building foundations have a large horizontal area of contact with the ground to distribute the weight of the structure evenly and prevent it from sinking or tilting. This helps to provide stability and support for the entire building. The larger the contact area, the more effectively the weight of the building can be spread out, reducing the risk of structural failure.
How does the path of the crate appear to somebody on the airplane and to someone on the ground when a crate is dropped from an airplane flying horizontally at constant speed?
To someone on the airplane, the crate would appear to fall straight down due to its initial horizontal velocity matching the airplane's speed. To someone on the ground, the crate would follow a parabolic path because of gravity acting on it vertically while it moves horizontally due to its initial velocity.
A 5 kg object is thrown from the top of a building 275m aboce some level ground It is released at a speed of 45 m per s initially along the horizontal direction?
THE QUESTION: 2) A 5 kg object is thrown from the top of a building, 275m aboce some level ground. It is released at a speed of 45 m/s, initially along the horizontal direction. (A) What are the magnitude and direction of its velocity at impact on the ground below (B) what momentum does it have at impact (C) What KE does it have just before impact (D) What is the average force during the impact?
What do you call the initial cutting and breaking of soil?
The initial cutting and breaking of soil is referred to as "ground breaking". Ground breaking ceremonies are typically conducted when building is about to commence of a structure or land development.
A brick is released with no initial speed from the roof of a building and strikes the ground in 2.00 s encountering no appreciable air drag How tall in meters is the building?
19.6m
While standing on the roof of a building, a child tosses a tennis ball with an initial speed of 15 m/s at an angle of 35° below the horizontal. The ball lands on the ground 2.6 s later. How tall, in meters, is the building?
The height of the building is 57.3 meters.
Example of 3 laws of motion?
when we walk on the ground, our feet pushes the ground in backward direction, as a reaction ground pushes us in forward direction hence we can walk on the ground.
Will two free fall bodies with different initial speeds reach ground together?
No. The one with higher initial speed will hit the ground first if they are both thrown straight down.
Which will hit the ground first a ball thrown horizontally at 2 meters per second off a building 20 m high or a ball dropped by a hand at the same height?
They should reach the ground together, since their initial vertical speed is the same, namely zero.
Which information is needed to find the time a projectile is in motion?
The object's initial distance above the ground The object's initial velocity
Why building foundation have large horizontal area of contact with the ground?
this is because when the area of contact between the ground and the building increases the pressure exerted by the building will be less for the same force.
Building Foundation and sub-structure what is it?
building foundation is the base of any building which receive load from the building, resist it and transfer it to the subsoil. substructure is the structure below the ground floor bed including the ground floor bed. substructure composes of foundation, basement and ground floor bed.
Why velocity is non zero when ball dropped to the ground?
The initial velocity of a dropped ball is zero in the y (up-down) direction. After it is dropped gravity causes an acceleration, which causes the velocity to increase. F = ma, The acceleration due to gravity creates a force on the mass of the ball.
How is newtons law and earthquakes related?
Newton's law of inertia applies: A body in motion tends to stay in motion, and a body at rest tends to stay at rest. This applies to earthquakes because a building or other large, fixed object is "at rest" and is not designed to be in motion. When the land vibrates and moves under a building due to an earthquake, the building has the contravening forces of inertia (the at-rest building tends to try to stay at rest) versus the ground under the building moving, and the ground doesn't play nice by moving smoothly and continuously in one direction. If it were not for inertia, the building and its contents (including people!) would simply move with the ground, and neither the building nor its contents would suffer damage.
What is the tallest building in Ghana?
i learnt it is one those presidential building and that when planes take off they divert to a different direction when heading towards it.
