Kinematics Problem 8.1.5

 

Description

A red ball undergoes projectile motion (position is in meters and time is in seconds). A red trail, arrows representing the velocity components, and x-y coordinates are given.

Question

What is the speed (position given in meters and time in seconds) of the projectile at t = 3.70 s? What is the velocity of the particle? The acceleration is constant but not necessarily 9.8 m/s2. The scale used to display velocity vectors is arbitrary. That is, do not assume that a vector of length five represents a velocity of 5 m/s. Start

Answer

v = 15.4 m/s.

v = (8.60 i +12.8 j) m/s.

Reference

See Giancoli-PA: 2-7, Giancoli-SE: 2-7.

Credits

Physlet problem authored by Mario Belloni.

2000 by Prentice-Hall, Inc. A Pearson Company