CLEAR
Toprankers-Info

+91 7676564400

Mobile App

Get it on Google Play
Discussions
Select Date
Tags:

Articles

Discussions
Submit Discussion
aastha jain

· started a discussion

· 1 Months ago

answer is not in accordance with question (Question: 158204.0 )

after taking a turn of 45 degree in clockwise direction he moves 5 m and not 5 root 2 m. please provide appropriate answers.

Question:
Birju walks 8 km towards North, then takes a turn of 450 in clockwise direction and walks 5\(\sqrt{2}\) km. Then he takes another a turn of 450 in anticlockwise direction and walks 8 km and then turns East and walks 10 km. Finally, he turns right and walks 13 km. How far and in which direction is he from the starting point?
Options:
A) 17 km, North-east
B) 17 km, South-east
C) 20 km, South-east 
D) 20 km, North-east
Solution:
Ans: (a)

The movement of Birju is as follows:


= OP =\(\sqrt[]{8^2+(10+5)^2} \ \ \ \ = \ \ \sqrt[]{289}\)  = 17 km in  the north-east directions.

Knowledge Expert

· commented

· 1 Months ago

Hi Aastha, 5√ 2 km had to be in place of 5km....we fixed it...
-logo
We at aim to provide most comprehensive content & test for practice which is carefully divided into various chapters and topics to help you focus on your weak areas.Our Practice mock test gives you unmatched analytics to help you realize your strong areas,time management and improvement areas.Our Short & Crisp notes on each topic will help you to quickly revise the topic along with the tips & tricks of the exams.
More About
-Info
-Info

Mobile App

Get it on Google Play
About Us Campus Ambassador Careers Contact Us Refund Policy

All Rights Reserved Top Rankers

User Policy
Disclaimer
Terms & Conditions