MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Grade:
        If r=a cost i +a sint j+at tan ak,then

find values of |(dr/dt)*(d²r/dt²)|
and(dr/dt)*(d²r/dt²)*(d^3r/dt^3).
9 years ago

Answers : (1)

vikas askiitian expert
509 Points
							

r = acost i +asint j +at(tanak) k..................1

 

dr/dt =ad/dt(cost) i  + ad/dt (sint)j+ (atana)d/dt(t) k

 

dr/dt =-asint +acost +atana k ...................2

 

d2r/dt2 = -acost i+ -asint j + 0 k            ...............3

 

d3r/dt3 = asint i -acost j                       ...............4

 

now use these equations and get ur ans ...

 

 

 

9 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies


Course Features

  • 731 Video Lectures
  • Revision Notes
  • Previous Year Papers
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Test paper with Video Solution


Course Features

  • 19 Video Lectures
  • Revision Notes
  • Test paper with Video Solution
  • Mind Map
  • Study Planner
  • NCERT Solutions
  • Discussion Forum
  • Previous Year Exam Questions


Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details