1. A box slides down a ramp with position vector given by r= 0.5t i + 3f² j + 8t k (m), where t is in s.At t = 3 s, what is the box's velocity and acceleration? What is the box's speed?

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Mechanical Engineering

A box slides down a ramp with position vector givem At t = 3 s, what is the box's velocity and acceleration

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter1: Introduction To Statics

Section: Chapter Questions

Problem 1.19P: Plot the earths gravitational acceleration g(m/s2) against the height h (km) above the surface of...

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

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1. A box slides down a ramp with position vector given by r= 0.5t i + 3f² j + 8t k (m), where t is in s.
At t = 3 s, what is the box's velocity and acceleration? What is the box's speed?

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