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Course: UP Class 9th Science > Unit 7

Lesson 2: Week 2
Science
UP Class 9th Science
Motion
Week 2
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Acceleration and displacement from v-t graph

Google Classroom

Problem

A runner starts at rest and accelerates until reaching a speed of 9.0ms. A graph of her velocity over time is shown below.
What is her average acceleration from 0 to 9.0 seconds?
Answer using two significant figures.
  • Your answer should be
  • a simplified proper fraction, like 3/5
  • a simplified improper fraction, like 7/4
  • an exact decimal, like 0.75
ms2