badge image

Enroll For Free Now & Improve Your Performance.

×
User Icon
User Icon
User Icon
User Icon
User Icon

Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
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: Upto college level

                        

A particle is fired vertically upward with a speed of 15km/s. With what speed will it in interstellar space. Assume only earth's gravitational field.

11 years ago

Answers : (1)

Pratham Ashish
17 Points
							

hi,

 to be free from earth,s field & enter in interstellar space one must have a minimum energy corresponding to the escape velocity.

escape velocity of earth = 11.2 km/s  = 11.2  X 103 m / s

      corresponding  K.E. = 1/2 m (11.2  X 103)^2

let the remaining speed in  interstellar space is v km/sec

  remaining K.E.

                     1/2 m (vx 103)^2 =  1/2 m ( 15 X 103 ) ^2 - 1/2 m ( 11.2 x 103 ) ^2

                              v^2 =  15 ^2 - 11.2 ^2

                                     = 99.56

                               v = √99.56 km/ sec

 

 

 

 

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


Course Features

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


Course Features

  • 110 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