January 12, 2009

How far will the train travel while it is stopping?

Category: Physics — Tags: , , – @ 10:44 am
train travel
Erin M asked:


A train has a mass of 3.2*10^6 kg. What steady breaking force must be applied to the wheels of the train to bring it to a stop in 12 mins if it is initially traveling at a speed of 60 km/hr? How far will it travel while it is stopping?

I believe this is a frictionless problem…but I don’t know where to being with this problem.

November 13, 2008

A train travelling at 100 km/h slows down with a uniform deceleration of 0.60 m/s^2. How long does it take to?

Category: Physics — Tags: , , – @ 11:05 pm
Bilal B asked:


stop?

October 20, 2008

How long does it take a 1.8X10^3 kg train to stop? How far does it travel?

Category: Physics — Tags: , – @ 2:24 pm
train travel
Joy S asked:


A train with a mass of 1.8kg is moving at 15m/s when the engineer applies the brakes. If the braking force is constant at 3.5X10^4N, how long does it take the train to stop? How far does the train travel during this time.

October 10, 2008

If u were on a bullet train travelling at 200kilometres a hour and u droped a ping pong ball? what will happen

Category: Physics — Tags: – @ 6:13 pm
Just another Teen asked:


So like will the ping pong ball land directly under the hand when you dropped it. Or will it travel in the dircetion to the back of the train because the train was moving so fast?


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