Snowball Projectile Motion Calculation: Time, Height, and Velocity

[barthayn]

Homework Statement

A child throws a snowball with a horizontal velocity of 18m/s directly toward a tree, from a distance of 9.0m and a height above the ground of 1.5m

a) after what time interval does the snowball hit the tree?
b) at what height above the ground will the snowball hit the tree?
c) determine the snowball's velocity as it strikes the tree.

Homework Equations

v=d/t

The Attempt at a Solution

For a I got 0.5s from t = d/v

For b and c I have no idea. I am missing the v_iy value. I have no idea how to any other information.

 

[PhanthomJay]

Homework Statement

A child throws a snowball with a horizontal velocity of 18m/s directly toward a tree, from a distance of 9.0m and a height above the ground of 1.5m

a) after what time interval does the snowball hit the tree?
b) at what height above the ground will the snowball hit the tree?
c) determine the snowball's velocity as it strikes the tree.

Homework Equations

v=d/t

The Attempt at a Solution

For a I got 0.5s from t = d/v

yes OK; ultimately you'll have to be sure that the snowball doesn't hit the ground before it reaches the tree.

For b and c I have no idea. I am missing the v_iy value. I have no idea how to any other information.

The problem statement notes that the snowball is thrown with a horizontal velocity. What does that tell you about the snowball's initial speed in the vertical y direction?