When the stone reaches its highest point, earth's gravity ensures it has to come down.
A the highest point its velocity will be zero.
The acceleration is the acceleration of gravity, downwards, or 9.8m/s/s (32 ft/s/s). When ball is thrown straight up it has an initial velocity that is decreasing because of gravity; at the highest point velocity is zero but acceleration is always constant at gravity rate.
0 zero
If it is thrown at an angle, at the top of its path, its vertical velocity will be zero, however its horizontal velocity will be the same as its initial horizontal velocity minus whatever loss in speed as a result of air friction at that point. We won't know what that is without more information.
Yes, whenever it reaches its highest point in the air
A the highest point its velocity will be zero.
At the highest point, the kinetic energy is least.
No, the acceleration at the highest point is never 0.
The acceleration is the acceleration of gravity, downwards, or 9.8m/s/s (32 ft/s/s). When ball is thrown straight up it has an initial velocity that is decreasing because of gravity; at the highest point velocity is zero but acceleration is always constant at gravity rate.
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Apogee
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Yes, it does.
The ball is a projectile, and as such, the only force acting on it after it has been thrown or kicked is gravity, so after it reaches its highest point, it will begin to fall to the ground at the rate of 9.8m/s2 .
0 zero
If it is thrown at an angle, at the top of its path, its vertical velocity will be zero, however its horizontal velocity will be the same as its initial horizontal velocity minus whatever loss in speed as a result of air friction at that point. We won't know what that is without more information.
Yes, whenever it reaches its highest point in the air