Horizontal Projections

Horizontal Projections

Author: Jose Popoff

1. Describe horizontal projections and the kinematic assumptions they involve.


2. Resolve the horizontal and vertical components of projectile motion.

This packet contains concept definitions provided by my own students through Twitter and curated by me through Storify.com.  Please go and check them out here:  http://sfy.co/TP4  (Please feel free to follow them, they are truly amazing kids!)

It also includes a snapshot of our class taken by a student´s cellphone and emailed to my Flickr account  as well as videos with developed problems.

Hope you enjoy!

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Equations of Motion for Horizontal Projections

Example 1

A baseball leaves a bat with a horizontal velocity of 20.0 m/s. In a time of 0.25 s, how far will it have traveled horizontally and how far will it have fallen vertically?

Source: Tippens, Physics p. 147

Example 2

An airplane traveling at 70.0 m/s drops a box of supplies. What horizontal distance will the box travel before striking the ground 340. m below?

Source: Tippens, Physics p. 147

Example 3

At a lumber mill, logs are discharged horizontally at 15.0 m/s from a greased chute that is 20.0 m above a mill pond. How far do the logs travel horizontally?

Source: Tippens, Physics p. 147

Example 4

A projectile has an initial horizontal velocity of 40.0 m/s at the edge of a rooftop. Find the horizontal and vertical components of its velocity after 3.00 s.

Source: Tippens, Physics p. 147