Home
Class 11
PHYSICS
An object falling through a fluind is ob...

An object falling through a fluind is observed to have acceleration given by ` a= g- bv` where ` g= gravitational acceleration and (b) is constant. After a long time of rlease. It is observed to fall with constant speed. What must be the value of constant speed ?

Text Solution

Verified by Experts

Given, ` a=- g- b v`
A body will fall with a constant speed ` v_(c)`. When ` a=0` Therefore, ` 0= g-b v_(c) or v_(c) =g//b`.
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS

    PRADEEP|Exercise 6 Very short|4 Videos
  • KINEMATICS

    PRADEEP|Exercise 1 Short answer|25 Videos
  • KINEMATICS

    PRADEEP|Exercise 4 Very short|24 Videos
  • GRAVIATION

    PRADEEP|Exercise Assertion-Reason Type Questions|19 Videos
  • LAWS OF MOTION

    PRADEEP|Exercise Assertion- Reason Type Questions|17 Videos

Similar Questions

Explore conceptually related problems

A feather of mass 5g is dropped from a height. It is observed to fall down with a constant velocity. What is the net force acting on it?

Prove that acceleration due to gravity on the surface of the earth is given by g =4/3 npGR where G is gravitational constant, p is mean density and R is the radius of the earth.

Assertion :- A particle having zero acceleration must have constant speed. Reason :- A Particle having constant speed must have zero acceleration.

Complete the analogy Acceleration due to gravity (g) : m//s^2 : : Gravitational constant (G) : ________ .

What is the value of gravitational constant G (i) on the earth, and (i) on the moon?

The maximum acceleration of a particle un SHM is made two times keeping the maximum speed to be constant. It is possible when .

Give points of difference between Acceleration due to gravity (g) and Universal gravitational constant (G).

At rain 200m long moving at constant acceleration crosses a bridge 300 m long. It enters the bridge with a speed of 3m/s and leaves it with a speed of 5m/s. What is the time taken to cross the bridge ?