Questions

The equation of motion of a point in space is $x=2t,\text{\hspace{0.17em}}y=-4t,z=4t,$ where ‘t’ is measured in hours and the coordinates of moving point in kilometers. The distance of the point from the starting point O (0,0,0) at the end of 10hours is

60 mins Expert Faculty Ask Questions

a

20 km

b

40 km

c

60 km

d

55 km

detailed solution

Correct option is C

OP=4t2+16t2+16t2t=10hors

Talk to our academic expert!

Create Your Own Test

Your Topic, Your Difficulty, Your Pace

Similar Questions

The locus of the point P such that $P{A}^{2}+P{B}^{2}=10$ where $A=(2,3,4),B=(3,-4,2)$ is

799 666 8865

support@infinitylearn.com

6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.

JEE

JEE Mock Tests

JEE study guide

JEE Revision Notes

JEE Important Questions

JEE Sample Papers

JEE Previous Year's Papers

NEET

NEET previous year’s papers

NEET important questions

NEET sample papers

NEET revision notes

NEET study guide

NEET mock tests

Popular Books

HC Verma Part 1HC Verma Part 2RS AgarwalRD SharmaLakhmir SinghDK GoelSandeep GargTS GrewalNCERT solutions

Class 12 NCERT SolutionsClass 11 NCERT SolutionsClass 10 NCERT SolutionsClass 9 NCERT SolutionsClass 8 NCERT SolutionsClass 7 NCERT SolutionsClass 6 NCERT Solutions