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: 8
        
The velocity of a river of wide 400m is 2 km per hour a Boat is rowed from a point on the bank to exactly opposite point on the other bank with a velocity of a 8kilometre per hour distance between the exactly opposite point and the point which the bank us reaches the bank is
8 months ago

Answers : (1)

Arun
21540 Points
							
Here the boat moves with the resultant velocity R. But the vertical component 8 km/h takes him to the opposite shore. Tan θ = 2/8 = 1/4 Velocity = 8 km/h distance = 0.4 km Time = 0.4/8 = 0.05 sec. The boat will reach at point C. In ∆ABC, tan θ = BC/AB = BC/0.4 = 1/4 ⇒ BC = 0.1 km= 100 m.
8 months 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