Ahot air balloon is moving at a speed of 10 meters/second in the +x direction. the balloonist throws a brass ball with a velocity of -2 meters/second with respect to himself. if the ball lands after 20 seconds, about how far does it land horizontally from the point at which it was released?
a). 120 m b). 125 m c). 300 m d). 400 m

240 m

Step-by-step explanation:

Given Balloon is going towards positive x direction with a speed of 10 m/s

and balloonist throw the ball with -2 m/s with respect to himself

thus absolute ball velocity is 12 m/s

As there is no horizontal force in x direction thus distance covered by ball in 20 sec is

R==240 m

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