# Projectile from ground level.spends

Not what you're looking for?

A rock is thrown upward from ground level with initial velocity Vo, beside a building whose roof height is H.

In terms of Vo, H and g, find what percent of its total flight time the rock is above the roofline.

##### Purchase this Solution

##### Solution Summary

The expert examines projectile from ground level spends.

##### Solution Preview

Step 1.

To find the total flight time, we use the general function y(t), giving the y coordinate of a projectile as a function of time:

(1) y = yo + Vo t + .5 a t^2

Step 2.

In this event, the rock is at ground level initially and also at the completion of the total flight, so y=0 and also yo= 0. Also, during the whole flight, the acceleration a= -g, the free fall acceleration of a projectile. (Upward is positive, so downward is negative.) Substituting these knowns ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

##### Basic Physics

This quiz will test your knowledge about basic Physics.

##### The Moon

Test your knowledge of moon phases and movement.

##### Classical Mechanics

This quiz is designed to test and improve your knowledge on Classical Mechanics.