Home
Class 12
PHYSICS
A jet airplane travelling at the speed o...

A jet airplane travelling at the speed of `500 km h^(-1)` ejects its products of combustion at the speed of `1500 km h^(-1)` relative to the jet plane. The speed of the products of combustion with respect to an observer on the ground is

A

1000`kmh^-1` in the direction west to east

B

1000 `kmh^-1` in the direction east to west

C

2000 `kmh^-1` in the direction west to east

D

2000`kmh^-1` in the direction east to west

Text Solution

Verified by Experts

The correct Answer is:
B

`vec(V)_(RG)=-500hatiimpliesvec(V)_(GA)+vec(V)_(A)=V_(GAS)`
`vec(V)_(GA)=1500hatiimplies1500hati-500hati=1000hati`
Promotional Banner

Similar Questions

Explore conceptually related problems

A jet airplane travelling at the speed of 500 km ^(-1) ejects its products of combustion at the speed of 1500 km h^(-1) relative to the jet plane. What is the speed of the burnt gases with respect to observer on the ground ?

A jet airplane travelling at the speed of 500 km ^(-1) ejects its products of combustion at the speed of 1500 km h^(-1) relative to the jet plane. What is the speed of the burnt gases with respect to observer on the ground ?

Convert the speeds in ms^(-1) 36 km h^(-1)

A car is running at a speed of 15 km h^(-1) while another Similar car is moving at a speed of 45 km h^(-1) . Find the ratio of their kinetic energies.

A car travels 100 km with a speed of 50 km h^(-1) and another 200 km with a speed of 20 km h^(-1)~ . Is the motion uniform ? Find the average speed of the car.

A train travels from Agra to Delhi with a constant speed of 50 km h^(-1) and returns from Delhi to Agra with a constant speed of 40 km h^(-1) . Find the average speed of the train.

Express the speed 36 km h^(-1) in m s^(-1) .

A train moves northwards with speed 80 km h^(-1) . While a car moves towards east with a speed of 60 km h^(-1) , what is the velocity of the train w.r.t the driver of the car ?

A car travels with speed 30 km h^(-1) for 30 minutes and then with speed 40 km h^(-1) for one hour. Find the total distance travelled by the car

A boy goes from his house to school by bus at a speed of 20 km h^(-1) and returns back through the same route at a speed of 30 km h^(-1) . The average speed of his journey is :