On a 60 km track, a train travels the fi...

On a 60 km track, a train travels the first 30 km with a uniform speed of `30 kmh^(-1)`. How fast must the train travel the next 30 km so as to average `40 kmh^(-1)` for the entire trip ?

Text Solution

AI Generated Solution

Topper's Solved these Questions

MECHANICS
SL ARORA|Exercise Exercise|341 Videos
Mechanical Properties of Solids
SL ARORA|Exercise Example|113 Videos
Motion in a Plane
SL ARORA|Exercise Excercise|397 Videos

Similar Questions

Explore conceptually related problems

On a 100km track, a train travels the first 30 km at a uniform speed of 30 kmh^(-1) . How fast must the train travel the next 70 km so as to averge the next 40km h^(-1) for entire trip.

On a 120 km track , a train travels the first 30 km at a uniform speed of 30 km//h . How fast must the train travel the next 90 km so as to average 60 km//h for the entire trip?

On a 100 km track, a train mvoes the first 50 km with a uniform speed of 50 km h^(-10 How fast must the train travel the next 50 km so as to have average speed 60 km h^(-1) for the entire trip ?

On a 80 km track, a train travels 40 km with a uniform speed of 30 km h^(-1) . How fast must the train travel the next 40 km h^(-1) as to have average speed 40 km h^(-1) for the entire trip?

On a 60 km stretch of road a cyclist travels first 20 km at a unifrom speed of 20 km h^(-1) . How fast must he travel the reamaining distance so that his average speed is 10 km h^(-1) for the entire trip.

The distance between two statios is 200km.A train travels goes the first 100km at a speed of 10km/hr. How fast should the train travel the next 100km so as to average 70km/hr for the whole journey.

On a journey of 80km, a car covers the first 40km with a uniform of 80km/hr. how fast it should travel in the next 40km so that an average speed of 100km/hr is maintained for the entire journey?

For a train that travels from one station to another at a uniform speed of 40 kmh^(-1) and returns to final station at speed of 60kmh^(-1) then its average speed is

SL ARORA-MECHANICS-Exercise

On a 60 km track, a train travels the first 30 km with a uniform speed...
Text Solution
|
A cyclist moving on a circular track of radius 100 m completes one rev...
Text Solution
|
A cyclist moving on a circular track of radius 100 m completes one rev...
Text Solution
|
A body travels a distance s(1) with vleocity v(1) and distance s(2) w...
Text Solution
|
A car covers the first half of the distance between two places at a sp...
Text Solution
|
A train moves with a speed o f30kmh^(-1) in the first 15 minutes,with...
Text Solution
|
The body travels a distance s(1) with velcity v(1) and s(2) with vel...
Text Solution
|
A car along a starigth line for the first half time with speed 50 kmh^...
Text Solution
|
The displacement x of a particle at time t along a straight line is gi...
Text Solution
|
The displacement x of a particle is dependent on time t according to t...
Text Solution
|
The displacement x of a particle is dependent on time t according to t...
Text Solution
|
The displacement of a particle along the x-axis is given by x=3+8t+7t^...
Text Solution
|
The distance traversed by a particle moving along a straight lne is gi...
Text Solution
|
The distance traversed by a particle moving along a straight line is g...
Text Solution
|
The distance traversed by a particle moving along a straight lne is gi...
Text Solution
|
A race car accelerates on a straight road from rest to a speed of 180 ...
Text Solution
|
A bullet travellling with a velocity of 16 m/s penetrates a tree trunk...
Text Solution
|
A car moving along a stainght highway with a speed of 72 kmh^(-1) is b...
Text Solution
|
on turning a corner a car driving at 36kmh^(-1) finds a child on the r...
Text Solution
|
the reaction time for an automobile drive os 0.6s if the automobile c...
Text Solution
|
A car starts from rest and accelerates uniformly for 10 sto a velocity...
Text Solution
|