Apassenger rides on a train that is moving at 100.0 km/h eastward. the passenger walks toward the front of the train at a speed of 3 km/h relative to the train. whilst walking, he throws a ball at 10 km/h toward the back of the train. what is the velocity of the ball relative to the ground?

velocity of train = 100 km/h (east)

Velocity of person walking in forward direction = 3 km/h (with respect to train)

now we can find the velocity of person with respect to ground as follows

now he throw a ball backwards with speed 10 km/h with respect to him

so here we will have

Towards East

so with respect to ground the ball speed is 93 km/h towards East

answer; ///(74) degrees is your answer..

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.