Questions
A ship A is moving westwards with a speed of 10 km h-1 and a ship B 100 km south of A, is moving northwards with a speed of 10kmh-1 . The time after which the distance between them becomes shortest, is :
detailed solution
Correct option is A
v→BA=102+102=102kmphdistance OB = 100 cos45°=52kmTime taken to reach the shortest distance between A and B=502v→BA=502102tsn = 5 hrs.Talk to our academic expert!
Similar Questions
The driver of a car moving towards a rocket launching with a speed of 6 ms-1 observed that the rocket is moving with speed of 10 ms-1.The upward speed of the rocket as seen by the stationary observer is nearly
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
free study material
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests
