You mount a ball launcher to a car. it points toward the back of the car 39 degrees above the horizontal and launches balloons at 9.7 m/s. when you drive the car straight ahead at 2.2 m/s, what is the initial angle in degrees of the ball's trajectory as seen by someone standing on the ground?

Explanation:

Given

Ball launcher is mounted on car at angle of

launching velocity is u=9.7 m/s

Speed of car =2.2 m/s

So in horizontal component of balloon speed of car will be added

Thus

therefore Appeared trajectory angle is

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers