Entries by Hannah Wangui

speed

Question An observer O is standing on a platform of length L = 90 m on a station. A rocket train passes at a relative (constant) speed of 0.96c moving parallel to the edge of the platform. Then, the observer O found that the front and back of the rocket train simultaneously line up with the ends of the plat form at […]

 

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force

Question The normal force equals the magnitude of the gravitational force as a roller coaster car crosses the top of a 50-m-diameter loop-the-loop. What is the car’s speed at the top?   Looking for a Similar Assignment? Order now and Get 10% Discount! Use Coupon Code “Newclient”

 

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