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Acceleration of a rock at the top of its trajectory when thrown straight upward?
Wiki User
∙ 14y ago
Any object moving under the influence of gravity only and no other outside forces has a constant acceleration of 9.8 meters (32.2 feet) per second2, directed down.
The speed changes. The acceleration doesn't, regardless of the angle, speed, trajectory, color, temperature, cost, size, mass, or weight of the falling object.
Wiki User
∙ 14y ago
At the top of its trajectory, the acceleration of a rock thrown straight upward is equal to the acceleration due to gravity (9.8 m/s^2) but acting in the opposite direction. This is because the rock is momentarily at rest at the highest point, and gravity is the only force acting on it.
Wiki User
∙ 13y agoThe acceleration of a rock near the surface of the earth is 9.8 meters per second2 (32.2 feet per second2).
That's at the top, middle, or bottom of its trajectory, whether it was dropped, or thrown up, down,
or sideways.
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What is the acceleration of a ball at the top of its trajectory when thrown straight upward?
zero
What is the acceleration of a stone at the top of its trajectory when it has been thrown straight upward?
0 m/s per second
A stone is thrown straight upward and it rises to a height of 20 meters With what speed was it thrown?
6.261 m/s
How much work is done when an object is thrown upward?
mass of the object (times) gravitational acceleration (times) height the object reaches.
How does the graph of velocity vs. time look for something with a constant positive acceleration?
An upward sloping straight line.
What is the acceleration of a ball at the top of its trajectory when thrown straight upward?
zero
What is the acceleration of a stone at the top of its trajectory when it has been thrown straight upward?
0 m/s per second
Acceleration of a rock thrown straight upward at the moment it reaches the tippy-top of its trajectory?
9.8 m/s (2) Squared
An object thrown upward has zero acceleration at the highest point?
No, the acceleration at the highest point is never 0.
What is tje meaning of trajectory?
The curve which a body describes in space, as a planet or comet in its orbit, or stone thrown upward obliquely in the air.
12) What is the definition of trajectory?
The curve which a body describes in space, as a planet or comet in its orbit, or stone thrown upward obliquely in the air.
A stone is thrown straight upward and it rises to a height of 20 meters With what speed was it thrown?
6.261 m/s
Is it possible for a body to have zero velocity and non-zero acceleration?
Yes, it is possible for a body to have zero velocity and non-zero acceleration. This would occur when a body changes direction (such as at the top of a projectile's arc) while its speed is momentarily zero, resulting in non-zero acceleration due to the change in velocity.
When will objects thrown upward start to go down?
When the vertical component of their velocity has dwindled to zero because of the acceleration of gravity.
A ball thrown vertically upward has an initial potential energy of 100 J and an initial kinetic energy of 700 J At the top of the trajectory its energy in joules is?
At the top of the trajectory, when the ball momentarily stops before falling back down, its kinetic energy is 0 J (as it stops moving) and its potential energy is equal to the initial potential energy of 100 J. So, the total energy at the top of the trajectory is 100 J.
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.
How much work is done when an object is thrown upward?
mass of the object (times) gravitational acceleration (times) height the object reaches.
