Home
Class 12
PHYSICS
A boat can be rowed in still water at a ...

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0.
After how much time, measured from the moment of turning back the boat will cross the raft again ?

A

`t_(0)`

B

`(ut_(0))/(u+v)`

C

`(vt_(0))/(u+v)`

D

`((v+v)t_(0))/(u-v)`

Text Solution

Verified by Experts

The correct Answer is:
1
Put separation = 0
`rArr" "ut_(0)-ut'=0 rArr t'=t_(0)`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN STRAIGHT LINE

    AAKASH INSTITUTE|Exercise Try Yourself|40 Videos

  • MOTION IN STRAIGHT LINE

    AAKASH INSTITUTE|Exercise Assignment (SECTION - A)|50 Videos

  • MOTION IN A STRAIGHT LINE

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION - D)|15 Videos

  • MOVING CHARGE AND MAGNESIUM

    AAKASH INSTITUTE|Exercise SECTION D|16 Videos

Similar Questions

Explore conceptually related problems

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. The distance between the boat and raft at a later instant of time t is

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. If the raft has covered a distance x during the interval in which boat overtakes the raft, turns back and crosses it again the speed of stream is

A boat can be rowed in still water at a speed u. The boat is moving downstream in a river in which water flows at a speed v. There is raft floating in water and therefore moving along with water at speed v. Let the boat overtakes the raft at the moment t = 0. Let the boat turns back at time t=t_(0) and starts moving towards the raft. The separation between the raft and boat after a time interval t' measured from the moment of turning back is

A boat goes 20 km downstream in 1 h and the same distance upstream in 2h. The speed of the boat in still water is-

What is downstream speed when speed of boat in still water and speed of stream are given

The speed of a boat in still water is 12 kmph . If the boat covers 36 km upstream in 4 hours , what is the speed of stream ?

The river flows at 4 km/h. A boat can go downstream thrice as fast as upstream The speed of boat in still water is

A boat goes 40 km upstream in 8 hours and 36 km downstream in 6 hours. The speed of the boat in still water is