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A student throws a ball up in the air with an initial velocity of 12 Meters per Second and then catches it as it comes back down to him. What is the ball's velocity when he catches it?
Wiki User
∙ 15y ago
As the ball leaves the student's hand it has a certain energy due to motion (Kinetic Energy). This energy is decreased as the ball rises and slows down. The energy is not lost. It is changing to energy due to position (Potential Energy). At the very top of the rise of the ball, where it stops, it has exactly the same Potential Energy as it had Kinetic Energy when it left his hand.
It will start back down, losing Potential Energy and gaining Kinetic Energy on the way. When the student catches it it will have exactly the same Kinetic Energy it had when it left his hand on the way up. A very small portion of the energy is converted to the energy in heat due the air friction.
In it's total travel absolutely no energy is lost.
Wiki User
∙ 15y ago
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If a student travels 20 meters in 5 seconds what is the students velocity?
The student's velocity is 4 meters per second. Velocity is calculated by dividing the distance traveled by the time taken. In this case, 20 meters divided by 5 seconds equals 4 meters per second.
The box decelerates at a rate of 3 m s and skids 24 meters before coming to a stop How fast were you traveling when the box fell out?
To find the initial velocity of the box when it fell out, you can use the formula: final velocity squared = initial velocity squared + 2 * acceleration * distance. Given that the final velocity is 0 m/s, acceleration is 3 m/s^2, and distance is 24 meters, you can solve for the initial velocity.
Find the acceleration of a car that goes from A meters per second to B meters per second in 8 seconds?
The acceleration of the car can be calculated using the formula: acceleration = (final velocity - initial velocity) / time. Given the initial velocity (A), final velocity (B), and time (8 seconds), you can substitute the values into the formula to find the acceleration.
What is the initial velocity if you kick a rock off a bridge that is 450 meters high and it travels a horizontal distance of 32 meters before hitting the water below?
The initial velocity can be found using the kinematic equation: (d = v_0t + \frac{1}{2}at^2), where (d = 32m), (a = -9.81 m/s^2) (acceleration due to gravity), and (t) can be calculated using the time it takes for the rock to fall from a height of 450m. The initial velocity (v_0) is the horizontal component of velocity; therefore, it is the found by (v_0 = \frac{d}{t}).
What is the velocity of the ball 0.6 seconds after its release?
To determine the velocity of the ball 0.6 seconds after its release, we need more information such as the initial velocity and acceleration of the ball. You would use the formula: velocity = initial velocity + (acceleration * time).
An arrow in flight has an initial velocity of 65 meters per second and 10 seconds later it has a velocity of 35 meters per second Which is the acceleration of the arrow?
Acceleration of the arrow is -3m/s2A = (velocity minus initial velocity) / time
What object shoots upward with an initial velocity of 6 meters per second?
anything shot up with that initial velocity. There isn't anything in specific.
If the launch angle is 15 degrees and the initial velocity is 50.0 meters per second what is the range?
If the initial velocity is 50 meters per second and the launch angle is 15 degrees what is the maximum height? Explain.
The box decelerates at a rate of 3 m s and skids 24 meters before coming to a stop How fast were you traveling when the box fell out?
To find the initial velocity of the box when it fell out, you can use the formula: final velocity squared = initial velocity squared + 2 * acceleration * distance. Given that the final velocity is 0 m/s, acceleration is 3 m/s^2, and distance is 24 meters, you can solve for the initial velocity.
What is initial velocity measured in?
Initial velocity can be measured in the same units as any other velocity. In SI, that would be meters per second, but often km / hour are used, or (in a minority of countries) feet/second or miles/hour.
When acceleration occurs?
Acceleration occurs when velocity changes over time. The formula for it is as follows: a = (Vf - Vi) / t a: acceleration (meters/seconds2) Vf: Final velocity (meters/seconds) Vi: Initial Velocity (meters/seconds) t: Time (seconds)
Find the acceleration of a car that goes from A meters per second to B meters per second in 8 seconds?
The acceleration of the car can be calculated using the formula: acceleration = (final velocity - initial velocity) / time. Given the initial velocity (A), final velocity (B), and time (8 seconds), you can substitute the values into the formula to find the acceleration.
If a student travels 20 meters in 5 seconds what is the students velocity?
The student's velocity is 4 meters per second. Velocity is calculated by dividing the distance traveled by the time taken. In this case, 20 meters divided by 5 seconds equals 4 meters per second.
What is the initial velocity if you kick a rock off a bridge that is 450 meters high and it travels a horizontal distance of 32 meters before hitting the water below?
The initial velocity can be found using the kinematic equation: (d = v_0t + \frac{1}{2}at^2), where (d = 32m), (a = -9.81 m/s^2) (acceleration due to gravity), and (t) can be calculated using the time it takes for the rock to fall from a height of 450m. The initial velocity (v_0) is the horizontal component of velocity; therefore, it is the found by (v_0 = \frac{d}{t}).
What will be the final velocity if the acceleration of 10 meters per second squared is sustained for 7 seconds?
The final velocity can be calculated using the formula: final velocity = initial velocity + (acceleration * time). If the initial velocity is 0 m/s, then the final velocity would be 10 m/s^2 * 7s = 70 m/s.
A piece of metal has attained a velocity of 107.8 meters per second after falling for ten seconds what is its initial velocity?
the answer is 24-9 m/sec. yuor welcome
The velocity of a car changes from 60 meters per second north to 45 meters per second north in 5.0 seconds The magnitude of the car's acceleration is?
a=change over velocity/time 60-initial velocity 45-final velocity 45-60= 15m/s 15/5= 3- acceleration
