Question

A train is moving at a speed of 70 km/h. if a ball is thrown in the direction of the motion of the train at 5m/s. what will be its speed as seen by an observer on the ground?
75 km/h
65 km/h
52 km/h
88 km/h​

Answer 1

Answer:

88km/h

Step-by-step explanation:

Bcz the speed will be now the sum of two speeds.

And when we convert 5m/s into km/h by multiplying with 18/5. We get 18 km/h

So speed of ball as seen be observer will 70+18= 88km/h