volume_mute

What is the distance covered by an object falling from rest towards ground after 3 seconds?

publish date: 2022/06/16 06:51:00 GMT+10

volume_mute

Hint: use acceleration equation

d = v0t + ½ at2

44.1 m
44 m
38 m
45 m

Correct Answer

44.1 m

Explanation

v0 = 0 since object is falling from rest

Substituting in the equation

v0 = 0 m/s,  t = 3 sec,  a = 9.8 m/s2

d = 0 * 3 + ½ (9.8)(3)2 = 44.1 m

Reference

Basic Physics: A Self-Teaching Guide

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