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Ymorist [56]
3 years ago
6

You're on a train that's moving forward at 50 mph. You throw a ball in the direction that the train is moving. Relative to you a

nd the train, the ball leaves your hand travelling at 20 mph.From the point of view of someone standing alongside the tracks, how fast is the ball moving?
Mathematics
1 answer:
dsp733 years ago
8 0

Answer:

Velocity =  70mph

Step-by-step explanation:

Given

Train = 50mph

Ball = 20mph

Required

How fast is the ball seem to be moving?

This question illustrates relative velocity;

Since the ball and the train moves in the same direction, the required velocity relative to the person standing behind is:

Velocity =  Train + Ball

i.e. we add both velocities

Velocity =  50mph + 20mph

Velocity =  70mph

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