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: 11

                        

one second after projection, a stone moves at an angle 45° with horizontal. two second after projection, it moves horizontally. its angle of projection is tan^-1 (2). Then what is its initial velocity.

4 years ago

Answers : (1)

Vikas TU
12278 Points
							
General eqn. at time gt in x and y direction respectively are = >
Vx = ucos(theta)
Vy = usin(theta) – gt
 
At t = 2 s, Vy = 0
usin(theta) – 2g = 0
u = 2g/sin(theta) = > 2g/(2/root5) { given theta = tan^-1 (2)}
u = g*root(5) m/s.
4 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

  • 18 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