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: 10
         An NCC parade is going at a uniform speed of 6 km/h through a place under a berry tree on which a bird is sitting at a height of 12.1 m. At a particular instant the bird drops a berry. Which cadet (give the distance from the tree at the instant) will receive the berry on his uniform?
5 years ago

Answers : (1)

Jitender Pal
askIITians Faculty
365 Points
							Sol. Let the true of fall be ‘t’ initial velocity u = 0
Acceleration a = 9.8 m/s2
Distance S = 12/1 m
∴ S = ut + ½ at2
⇒ 12.1 = 0 + 1/2 (9.8) × t2
⇒ t2 = 12.1/4.9 = 2.46 ⇒ t = 1.57 sec
For cadet velocity = 6 km/hr = 1.66 m/sec
Distance = vt = 1.57 × 1.66 = 2.6 m.
The cadet, 2.6 m away from tree will receive the berry on his uniform.

						
5 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