Respuesta :
Velocity at maximum height is zero.
Acceleration at maximum height is 9.81 m/s² downward.
Acceleration when it just hits the ground is 9.81 m/s² downward.
Explanation:
For a ball thrown vertically upward, the velocity at maximum height is zero.
Acceleration is a constant for a ball thrown vertically upward, its is acceleration due to gravity.
Acceleration at maximum height is 9.81 m/s² downward.
Acceleration when it just hits the ground is 9.81 m/s² downward.
The velocity of the ball at maximum altitude is 0 m/s, its acceleration at maximum altitude is 0 m/s² and its acceleration just before it hits the ground is 9.8 m/s²
For a given projectile, the velocity of the projectile when it reaches its maximum height is 0 m/s
Also, for any given projectile, the acceleration at maximum height is 0 m/s².
The acceleration of an object falling freely, just before it hits the ground equals acceleration due to gravity.
Thus, the acceleration of the ball just before it hits the ground is 9.8 m/s².
Hence, the velocity of the ball at maximum altitude is 0 m/s, its acceleration at maximum altitude is 0 m/s² and its acceleration just before it hits the ground is 9.8 m/s².
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