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If a small marble is dropped straight downward what is the initial velocity of the marble?
Wiki User
∙ 14y ago
The initial velocity is zero.
In most basic physics problems like this one the initial velocity will be zero
as a rule of thumb:
the initial velocity is always zero, unless otherwise stated, or this is what you are solving for
Cases where the initial velocity is not zero
examples
a cannon ball is shot out of a cannon at 50 mph
a ball is thrown from at a speed of 15 mph
etc
Wiki User
∙ 14y ago
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What formula do you use to calculate the acceleration of an object moving in a straight line?
Acceleration = Final velocity - Initial velocity / time
An arrow is shot straight up at an initial velocity of 250ms How long will it take to hit the ground?
This is a velocity question so u need to use uvaxt
Can the effect of initial velocity on final velocity be predicted?
Well, (final velocity) = (initial velocity) + (acceleration x time)
What is the formula for calculating final velocity when you know the initial speed and the acceleration?
the formula for finding acceleration is final velocity, minus initial velocity, all over time. So if you have the acceleration and initial speed, which is equal to the initial velocity, you must also have time in order to find the final velocity. Once you have the time, you multiply it by the acceleration. That product gives you the difference of the final velocity and initial velocity, so then you just add the initial velocity to the product to find the final velocity.
What is the formula for calculating displacement in which initial velocity and time are the variables?
If the velocity is constant, thenDisplacement = (initial velocity) multiplied by (time)
Draw the Velocity Versus Time graph for an object that is dropped from the top of a building and has no initial speed?
The velocity versus time graph would be a straight line sloping downward. The velocity would start at 0 when the object is released, then increase linearly in the negative direction as it accelerates due to gravity.
Why does a ball that is thrown straight curve downward?
A ball thrown straight will curve downward due to the pull of gravity acting on it. As the ball moves forward, gravity exerts a downward force on it, causing it to follow a curved path towards the ground. This downward curve is influenced by factors such as air resistance and the initial velocity and angle at which the ball was thrown.
What is the balloons initial velocity when a water balloon is dropped from the fifth floor of a building?
If you simply release an object, the initial velocity is always zero.
Why velocity is non zero when ball dropped to the ground?
When a ball is dropped, it starts with an initial velocity of zero. However, as it falls towards the ground, it accelerates due to gravity, causing its velocity to increase. Therefore, the velocity of the ball is non-zero as it falls towards the ground.
Does uniform negative acceleration properly characterize the motion of a heavy object thrown violently downward from a tall building?
Yes, uniform negative acceleration (specifically gravity) can accurately describe the motion of a heavy object thrown downward from a tall building. The object would experience a constant acceleration due to gravity as it falls towards the ground. This acceleration would cause the object's velocity to increase over time until it reaches the ground.
How does the height from which an object was dropped affect its average velocity?
The height from which an object is dropped does not affect its average velocity. Average velocity depends on the overall displacement and time taken to achieve that displacement, regardless of the initial height of the object.
Is a body has zero velocity with non-zero acceleration?
Yes, it is possible for a body to have zero velocity while experiencing non-zero acceleration. This occurs when the body is changing direction but not speed, such as in circular motion. Another example is when the body is momentarily at rest at the peak of its motion, like a ball thrown upwards.
What formula do you use to calculate the acceleration of an object moving in a straight line?
Acceleration = Final velocity - Initial velocity / time
If air resistance can be neglected how does the acceleration of a ball that has been tossed straight upward compare with its acceleration if simply dropped?
If air resistance can be neglected, the acceleration of a ball tossed straight upward is the same as when it is dropped - both experience a gravitational acceleration of 9.81 m/s^2 downward. The initial velocity of the tossed ball would cause it to momentarily counteract the acceleration and then eventually slow down and reverse direction due to gravity.
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?
The vertical component of velocity for the projectile when it is fired horizontally is zero. This is because the initial velocity is entirely in the horizontal direction, and there is no initial velocity in the vertical direction. Gravity will act on the projectile, causing its vertical velocity to increase as it travels.
An aeroplane flying at a constant velocity releases a bomb. As the bomb drops down from the aeroplane what will be the position of the bomb with respect to the plane?
The bomb will fall vertically downward relative to the plane as both the bomb and the plane are in motion. The horizontal distance between the bomb and the plane will increase as the bomb falls due to the plane's forward velocity.
A baseball is hit straight up at an initial velocity of 150MS. what will be the baseballs speed when it hits the ground?
20.40
