answersLogoWhite

0


Best Answer

A ball thrown vertically upward returns to the starting point in 8 seconds.

-- Its velocity was upward for 4 seconds and downward for the other 4 seconds.

-- Its velocity was zero at the turning point, exactly 4 seconds after leaving the hand.

-- During the first 4 seconds, gravitational acceleration reduced the magnitude of its upward velocity by

(9.8 meters/second2) x (4 seconds) = 39.2 meters per second

-- So that had to be the magnitude of its initial upward velocity.

User Avatar

Wiki User

12y ago
This answer is:
User Avatar
More answers
User Avatar

Wiki User

14y ago

0 because initial is your starting point and the ball hasn't been thrown yet

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: A ball thrown vertically upward returns to the starting point in 8 seconds.find its initial velocity.?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What does initial velocity means?

initial velocity is the velocity with which a particle starts its journey.


What is initial velocity?

Initial velocity is the original starting velocity. I love math! It makes you smart like a math smart person.


A rocket of initial mass m0 is shot vertically upward Assume that the motion occurs under constant gravitational acceleration g Let the initial velocity of the rocket on the surface of the earth be?

the initial velocity of the rocket is zero.


What height is reached by a 4.0kg ball that is thrown vertically up into the air with an initial velocity of 8.5ms1 if by the time it is height (h) metres above the starting point it has a velocity of?

Height reached = 3.7 metres.The mass of the ball is not really relevant.


What is the relationship between starting length and initial velocity of shortening?

The lighter the weight, the greater the initial velocity of shortening; inverse relationship.


A ball is thrown horizontally from a window on the second floor of a building What is the vertical component of its initial velocity?

If a ball is thrown horizontally from a window on the second floor of a building, the vertical component of its initial velocity is zero.


What is the relationship between the load attached to skeletal muscle and the initial velocity of skeletal muscle shortening?

As the starting length of the muscle is increased the initial velocity increases then decreases.


How is distance travel by particle projected vertically upward with initial velocity 25 meter per seconds is 2.5 mt in 3rd second of motion?

i


What are the example of velocity problem?

A ball is thrown vertically upward from a point near the cornice of the tall building.It's just misses the cornice on the way down and passes a point of 160ft. below it's starting point . 5secs after declease the throwers hand. a.) what was the initial velocity of the ball? b.) How high did he tries about it's starting point c.)What was it's velocity on the highest point? d.)What was it's velocity as it pass the point 64ft. below the starting point e.) If the ball reach the ground in 7s how tall is the building ?


Can the effect of initial velocity on final velocity be predicted?

Well, (final velocity) = (initial velocity) + (acceleration x time)


Total initial momentum of two objects?

That may vary, depending on the initial velocity and mass.That may vary, depending on the initial velocity and mass.That may vary, depending on the initial velocity and mass.That may vary, depending on the initial velocity and mass.


What are the example of the problem?

A ball is thrown vertically upward from a point near the cornice of the tall building.It's just misses the cornice on the way down and passes a point of 160ft. below it's starting point . 5secs after declease the throwers hand. a.) what was the initial velocity of the ball? b.) How high did he tries about it's starting point c.)What was it's velocity on the highest point? d.)What was it's velocity as it pass the point 64ft. below the starting point e.) If the ball reach the ground in 7s how tall is the building ?