Solving for Time and Velocity of a Ball Rolling Off a Table – Motion Question

[kevinf]

Homework Statement

A ball rolls horizontally off the edge of a tabletop that is 1.00 m high. It strikes the floor at a point 1.64 m horizontally away from the table edge. (Neglect air resistance.). How long was the ball in the air and what speed was it at the instant it left the table.

Homework Equations

x-x0 = V0xT + .5(a)t^2

y-y0 = V0yT - .5(g)t^2

The Attempt at a Solution

i am having trouble figuring out anything with this little information. i have tried to use the equations that i provided but it was missing velocity. any other way that i can do that i may have missed?

 

[PhanthomJay]

Homework Statement

A ball rolls horizontally off the edge of a tabletop that is 1.00 m high. It strikes the floor at a point 1.64 m horizontally away from the table edge. (Neglect air resistance.). How long was the ball in the air and what speed was it at the instant it left the table.

Homework Equations

x-x0 = V0xT + .5(a)t^2

y-y0 = V0yT - .5(g)t^2

The Attempt at a Solution

i am having trouble figuring out anything with this little information. i have tried to use the equations that i provided but it was missing velocity. any other way that i can do that i may have missed?

Your equations are correct. What is the value of V0y? What is the value of 'a' in the x direction?

 

[kevinf]

yeah but i don't know how to find V0y with that information

 

[PhanthomJay]

yeah but i don't know how to find V0y with that information

it's given that the ball rolls off the table horizontally. So what is its initial speed in the y direction if it initially is moving horizontally in the x direction only?

 

[kevinf]

thanks i got the answer.