Get 2 FREE Instant-Explanations on Filo with code FILOAPP

Home

Science

Motion

Abdul, while driving to school, computes the average speed for

Science

Class 9

NCERT

Chapter 1: Matter in Our Surroundings

9 questions

Chapter 2: Is Matter Around Us Pure?

13 questions

Chapter 3: Atoms and Molecules

16 questions

Chapter 4: Structure of the Atom

19 questions

Chapter 5: The Fundamental Unit of Life

10 questions

Chapter 6: Tissues

15 questions

Chapter 7: Diversity in Living Organisms

6 questions

Chapter 8: Motion

18 questions

Joseph jogs from one end A to the other end B of a straight

300 m

road in 2 minutes 30 seconds and then turns around and jogs

100 m

back to point C in another 1 minute. What are Joseph's average speeds and velocities in jogging (a) from A to B and (b) from A to C?

Abdul, while driving to school, computes the average speed for his trip to be

20

h^{- 1}

. On his return trip along the same route, there is less traffic and the average speed is

30

h^{- 1}

. What is the average speed for Abdul's trip?

A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of

3.0 m / s^{2}

for

8.0

s. How far does the boat travel during this time?

View all question

Chapter 9: Force and Laws of Motion

29 questions

Chapter 10: Work and Energy

23 questions

Chapter 11: Sound

25 questions

Chapter 12: Why do We Fall Ill?

6 questions

Chapter 13: Natural Resourses

6 questions

Chapter 14: Improvement in Food Resources

Chapter 15: Gravitation

29 questions

Question

Medium

Solving time: 4 mins

Abdul, while driving to school, computes the average speed for his trip to be $20$ km $h^{- 1}$ . On his return trip along the same route, there is less traffic and the average speed is $30$ km $h^{- 1}$ . What is the average speed for Abdul's trip?

Views: 7,318 students

Updated on: Feb 14, 2023

Book:

Science (NCERT)

Found 7 tutors discussing this question

Olivia Discussed

Abdul, while driving to school, computes the average speed for his trip to be

20

h^{- 1}

. On his return trip along the same route, there is less traffic and the average speed is

30

h^{- 1}

. What is the average speed for Abdul's trip?

8 mins ago

Discuss this question LIVE

8 mins ago

Text solutionVerified

Let us assume that Abdul is travelling

x

kilometer distance while going to school.

Distance = Speed x Time

1)When it's average speed is 20 km/hr

x = v_{1} \times t_{1} = 20 \times t_{1}

2)When it's average speed is 30 km/hr

x = v_{2} \times t_{2} = 30 \times t_{2}

V_{a v er a g e} = \frac{t o t a l d i s t an ce t r a v e ll e d}{t o t a l t im e t ak e n}

V_{a v er a g e} = \frac{x + x}{\frac{x}{v _{1}} + \frac{x}{v _{2}}} = \frac{2 x}{\frac{x}{20} + \frac{x}{30}} = 24 km h^{- 1}

Was this solution helpful?

Report

Filo tutor solutions (5)

Learn from their 1-to-1 discussion with Filo tutors.

7 mins

Uploaded on: 2/14/2023

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Gaurav Upadhyay

Total classes on Filo by this tutor - 8,511

Teaches : Science, Mathematics, Social Studies (SST)

Connect instantly with this tutor

Connect now

Notes from this class (3 pages)

Download

Was this solution helpful?

138

Report

5 mins

Uploaded on: 10/11/2022

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Gaurav Yadav

Total classes on Filo by this tutor - 979

Teaches : Science, Mathematics, English

Connect instantly with this tutor

Connect now

Notes from this class (2 pages)

Download

Was this solution helpful?

Report

2 mins

Uploaded on: 10/11/2022

Ask your question, on a video call with tutor

Connect instantly with this tutor

Connect now

Taught by

Jha Chandan

Total classes on Filo by this tutor - 21,227

Teaches : Science, Mathematics, English

Connect instantly with this tutor

Connect now

Notes from this class (1 pages)

Download

Was this solution helpful?

Report

See more 1-on-1 discussions (2)

One destination for complete JEE/NEET preparation

One destination to cover all your homework and assignment needs

Learn Practice Revision Succeed

Instant 1:1 help, 24x7

60, 000+ Expert tutors

Textbook solutions

Big idea maths, McGraw-Hill Education etc

Essay review

Get expert feedback on your essay

Schedule classes

High dosage tutoring from Dedicated 3 experts

Trusted by 4 million+ students

Practice more questions from Science (NCERT)

Joseph jogs from one end A to the other end B of a straight

300 m

road in 2 minutes 30 seconds and then turns around and jogs

100 m

back to point C in another 1 minute. What are Joseph's average speeds and velocities in jogging (a) from A to B and (b) from A to C?

Abdul, while driving to school, computes the average speed for his trip to be

20

h^{- 1}

. On his return trip along the same route, there is less traffic and the average speed is

30

h^{- 1}

. What is the average speed for Abdul's trip?

A motorboat starting from rest on a lake accelerates in a straight line at a constant rate of

3.0 m / s^{2}

for

8.0

s. How far does the boat travel during this time?

View all

Stuck on the question or explanation?

Connect with our Science tutors online and get step by step solution of this question.

231 students are taking LIVE classes

Question Text	Abdul, while driving to school, computes the average speed for his trip to be $20$ km $h^{- 1}$ . On his return trip along the same route, there is less traffic and the average speed is $30$ km $h^{- 1}$ . What is the average speed for Abdul's trip?
Updated On	Feb 14, 2023
Topic	Motion
Subject	Science
Class	Class 9
Answer Type	Text solution:1 Video solution: 5
Upvotes	423
Avg. Video Duration	9 min

Abdul, while driving to school, computes the average speed for his trip to be $20$ km $h^{- 1}$ . On his return trip along the same route, there is less traffic and the average speed is $30$ km $h^{- 1}$ . What is the average speed for Abdul's trip?

Text solutionVerified

Filo tutor solutions (5)

Practice more questions from Science (NCERT)

Practice questions from Science (NCERT)

Practice more questions from Motion

Practice questions on similar concepts asked by Filo students

Abdul, while driving to school, computes the average speed for his trip to be 20km h−1. On his return trip along the same route, there is less traffic and the average speed is 30km h−1. What is the average speed for Abdul's trip?

Text solutionVerified

Filo tutor solutions (5)

Practice more questions from Science (NCERT)

Practice questions from Science (NCERT)

Practice more questions from Motion

Practice questions on similar concepts asked by Filo students

Related books for questions on Motion

Abdul, while driving to school, computes the average speed for his trip to be $20$ km $h^{- 1}$ . On his return trip along the same route, there is less traffic and the average speed is $30$ km $h^{- 1}$ . What is the average speed for Abdul's trip?