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A jet airplance travelling at the speed ...

A jet airplance 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

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`
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