0

Guest

Courses New

Sir please solve this problem so that I will score good in jee.

Sir please solve this problem so that I will score good in jee.

Question Image
Grade:11

2 Answers

Arun
25750 Points
5 years ago
Consider one particle is moving in direction of +ve x axis with velocity v1 and other in direction of -ve x axis with velocity v2.
At time t,velocities of two bodies are:
v1 =(3)i - (10t)j
v2 =(-4)i - (10t)j
When velocity vectors are perpendicular ,v1.v2=0
So
-12+100t2=0
or t=√3/5
At t=√3/5, the bodies would have fallen the same distance or in other words the bodies will always be in a horizontal line...
So the distance between two bodies is the distance between their x co-ordinates which are:
3√3/5 and -4√3/5 respectively..
So the distance is 7 √3/5.
Gitanjali Rout
184 Points
5 years ago
At time t,velocities of two bodies are:
v1=(3)i - (10t)j
v2=(-4)i - (10t)j
When velocity vectors are perpendicular ,v1.v2=0
So
-12+100t2=0
or t=√3/5
At t=√3/5, the bodies would have fallen the same distance or in other words the bodies will always be in a horizontal line...
So the distance between two bodies is the distance between their x co-ordinates which are:
3√3/5 and -4√3/5 respectively..
So the distance is 7 √3/5 .

Think You Can Provide A Better Answer ?

Other Related Questions on Mechanics

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More