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Is 0 velocity and 0 acceleration correctly describes the velocity and acceleration of the rock at the exact top of its path?
Wiki User
∙ 14y ago
No. Any object that was shot by gun, flung by slingshot, or thrown by hand, begins accelerating
downward at the acceleration of gravity as soon as it leaves the propulsion system.
Zero velocity is true at the top, but acceleration is constant throughout the trajectory ... 9.8 m/s downward.
Wiki User
∙ 14y ago
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Does the Magnitude of a charge affect the velocity of body?
That depends on the exact situation. If there is an interaction with other charges, this can cause the object to acceleration (basically, change its velocity), and the greater the object's charge, the faster its velocity will change.
What two things fall at the same speed?
A marble and a bowling ball fall at the same acceleration speed. Anything with the exact same shape falls at the same velocity. 10 meters/s/s
Can an object have zero velocity and non-zero acceleration?
Yes, an object can have have zero velocity and non-zero acceleration. This happens when an object is at rest and when a force is applied on it such as gravity. But this isn't always true. A good example of another situation is when you throw an object vertically up into the air. Such an object will be acted upon by the constant acceleration of gravity. Due to this acceleration, it will slow down, then it will reverse direction, and finally it will fall back to the ground. At the exact point at the top of its path before falling back down, the object will have zero velocity. Yet it will still be accelerating towards the ground the whole time. The object is being accelerated by the force of gravity throughout its entire journey.
Why is the velocity zero at highest oscillation point?
At the highest point, there's an instant when the motion is changing from upward to downward. At that exact instant, the speed is zero, and that's zero velocity.
A physics book of unknown mass is dropped 4.85 m What speed does the book have just before it hits the ground?
Acceleration of an object, to a point is constant. The SIMPLE answer is beloow. Accelerating object will change their velocity so... 0 second = 0 velocity 1 second = 4 m/s 2 seconds = 8 m/s 3 seconds = 12 m/s and so on until terminal velocity... so the simple answer to your question is... just over 1 second. To get an exact answer will take more excating calculation as this is a curve.
Does the Magnitude of a charge affect the velocity of body?
That depends on the exact situation. If there is an interaction with other charges, this can cause the object to acceleration (basically, change its velocity), and the greater the object's charge, the faster its velocity will change.
When an object is thrown straight up at the highest point the downward velocity is?
A rock has the same constant acceleration from the moment it leaves your hand until the moment it hits the ground. It doesn't matter whether you dropped it or threw it, or in what direction it left you. The acceleration is 9.8 meters (32.2 feet) per second2 directed downwards. That's the acceleration of gravity on earth. As you asked, let's say you tossed it straight upwards. A tiny instant before it reaches the exact top, it has a small upward speed. A tiny instant after it passes the exact top, it has a small downward speed. During that tiny space of time, its upward speed decreases and its downward speed increases. That's a downward acceleration in anybody's book.
Can an object's velocity change direction when its acceleration is constant?
No. Acceleration is a change of velocity and doesn't have to point in the same direction. Consider braking car: it still moves with decreasing velocity in one direction, while braking force and thus acceleration is in the opposing direction.
What two things fall at the same speed?
A marble and a bowling ball fall at the same acceleration speed. Anything with the exact same shape falls at the same velocity. 10 meters/s/s
What is the detonation velocity of an atomic bomb?
In excess of 50,000 meters/second, but the exact velocity depends on yield.
Can an object have zero velocity and non-zero acceleration?
Yes, an object can have have zero velocity and non-zero acceleration. This happens when an object is at rest and when a force is applied on it such as gravity. But this isn't always true. A good example of another situation is when you throw an object vertically up into the air. Such an object will be acted upon by the constant acceleration of gravity. Due to this acceleration, it will slow down, then it will reverse direction, and finally it will fall back to the ground. At the exact point at the top of its path before falling back down, the object will have zero velocity. Yet it will still be accelerating towards the ground the whole time. The object is being accelerated by the force of gravity throughout its entire journey.
How do you spell exact?
That is the correct spelling of "exact" (precise, accurate).
What describes exact location?
precise area
What describes the exact location of a place?
dinger
Can you predict final velocity?
Based on what? Please post another question with a bit more information about the exact situation in which you want to predict the final velocity.
Velocity factor of a 14 awg cable?
Velocity factor depends to a large extent on the dielectric (insulation) used. You will have to specify the exact cable to answer this question.
What is instanteous velocity?
It is the exact velocity of an object at any point of its path. Remember that VELOCITY also has a direction component to it. Therefore at a constant SPEED an object following a curved path has a constantly changing Velocity. In other words the Vector that represents its Velocity has a changed value at every point.
