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2 years ago

A train travels at 270 km in 3 hours . what is the speed of the train?

Physics

2 answers:

yKpoI14uk [10]2 years ago

7 0

Rate times time = distance.

Rate = x
Time = 3 hours
Distance =270 km

Ann [662]2 years ago

3 0

$270 \div 3 = 90km / h$

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$R=v_o\sqrt{\frac{2h}{g}}$ (3)

R: horizontal range of the ball = 20.0 m

You solve the previous equation for vo, the initial horizontal velocity:

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The horizontal component of the velocity is constant in the complete trajectory, hence, you have that

vx = vo = 35 m/s

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