Question

 A jet cruising at a speed of 1000 km/hr ejects hot air in the opposite direction. If the speed of hot air with respect to Jet is 800 km/hr, then find its speed with respect to ground.

Answer 1

Answer:

Speed of the jet airplane, V

jet

= 500 km / h.

Relative speed of its products of combustion with respect to the plane,

V

smoke

= - 1500 km / h

Speed of its products of combustion with respect to the ground = V

smoke

Relative speed of its products of combustion with respect to the airplane,

V

smoke

= V

smoke

−V

jet

- 1500 = V

smoke

- 500

V

smoke

= - 1000 km / h

The negative sign indicates that the direction of its products of combustion

is opposite to the direction of motion of the jet airplane.

farzan

follow me

Answer 2

Answer:

1000

Explanation:

..........?????????