Question: A ball thrown vertically upward reaches a maximum height of 30 meters above the surface of Earth. At its maximum height, the speed of the ball is: Answer:
0 m/s
. The instantaneous speed of any projectile at its maximum height is zero.
What is the velocity of the ball that is thrown vertically upward at its highest point?
Question: When a ball is thrown vertically upward, it continues upward until it reaches a certain position, and then it falls downward. At that highest point,
its velocity is instantaneously zero
.
What will be the velocity and acceleration of ball upwards at maximum height?
At the maximum
height velocity becomes zero
. Therefore, velocity at the top is zero and acceleration is acceleration due to gravity (g).
What is acceleration at maximum height?
At a projectile’s highest point, its
acceleration is zero
.
How long does it take the same ball to hit the ground after it reaches its highest point?
Thus the ball hits the ground after
2. 5 seconds
after reaching its highest point.
Can a body have 0 velocity and still be accelerating?
Yes
, an object can have zero velocity and still be accelerating simultaneously. … Then the object will start to move in the backward direction.
Can a body have zero velocity and finite acceleration?
In the simple harmonic motion during the motion, at the extreme positions, the velocity of the body is zero but the acceleration is highest. … Therefore, a body can have zero velocity and
finite acceleration
.
How long does it take for the ball to reach its maximum height?
It takes
about 88 seconds
for the cannonball to reach its maximum height (ignoring air resistance). You have 176 seconds, or 2 minutes and 56 seconds, until the cannonball destroys the cannon that fired it.
Why is acceleration not zero at maximum height?
2 Answers. At its maximum height its velocity will be exactly zero, because
it will not be moving
(for a fraction of a second). On its way up the speed will decrease. … However, even when the velocity is zero, an object in free-fall is always accelerating at the same rate.
How do you find maximum height in free fall?
y = v 0 2 − 2 g = ( 2.0 × 10 2 m / s )
2 − 2 ( 9.8 m / s 2 ) = 2040.8 m . This solution gives the maximum height of the booster in our coordinate system, which has its origin at the point of release, so the maximum height of the booster is roughly 7.0 km.
What is the velocity 1 second before it reaches its highest point?
At the top, its velocity is zero. (b) What is its velocity 1 s before it reaches its highest point? One second before reaching the top, it is moving up at
v = 10 m/s
.
What is the acceleration of a rock thrown straight upward on the way up?
When a rock thrown straight upward gets to the exact top of its path, the magnitude of its a velocity is zero and its
acceleration is zero
.
What happens when a ball is thrown vertically upward?
When the body is thrown upwards, it
moves up until the velocity of the ball becomes zero and the force exerted on it becomes zero
. After that the ball reaches the ground with the acceleration due to gravity with the zero velocity. When the ball goes up, the height of the ball increases and it also moves up.
Can a body have constant velocity and still varying speed?
No
, a body can not have its velocity constant, while its speed varies. Rather, it can have its speed constant and its velocity varying. For example in a uniform circular motion.
Does 0 velocity mean 0 acceleration?
For the
most part velocity is not zero if an object is accelerating
. … If the velocity is constant however, the acceleration is zero (because the velocity isn’t changing over time). Although at an instant in time it is possible to have zero velocity whilst accelerating.
Can a body have constant speed and still be accelerating?
Complete answer:
If a body has
constant velocity
, it means that the magnitude of the velocity and the direction of the velocity vector will remain constant. Since speed is equal to the magnitude of the velocity vector, it will also be constant. … Hence, a body can have a constant speed and still be accelerating.
