Find Initial Velocity: Time = 2.58s, Distance = 9.87m

[Jillypilly9]

Homework Statement

Find the initial velocity of a ball with the time=2.58 seconds and distance of 9.87 meters

Homework Equations

vi=v-at

The Attempt at a Solution

I don't understand how to find the acceleration with just time and distance is it just 9.8 m^3/second?

 

[jupiter13]

I can't gather from the problem that the ball experiences any acceleration. The really basic equation that comes to mind is: x=x_o+v_ot+½at². Give that a try.

In the case that the ball is falling vertically, a=10ms-² instead of zero (9.81ms-² if you wanted to be more precise).

 

[Redbelly98]

Welcome to Physics Forums

Homework Statement

Find the initial velocity of a ball with the time=2.58 seconds and distance of 9.87 meters

Homework Equations

vi=v-at

The Attempt at a Solution

I don't understand how to find the acceleration with just time and distance is it just 9.8 m^3/second?

How exactly is the problem worded? Is there any indication that the ball is falling?