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Numerical Problem from Laws of Motion

An 8000 kg engine pulls 40000 kg train alonged a level track and gives an acceleration of 1.2m/s2. Find the accelaration produced by same engine on a train of mass 16000kg?

Answer:

Force exerted by the engine = mass of train x acceleration =  40000 x 1.2=48000N

When the same engine pulls a 16000 kg train, the acceleration = 48000/16000=3m/s2

A question from practical life situation

“I was hit in the head with a 10 lb 10 inch circular disc a truck ran over my ques is? If it launched from ground level traveled 18.3 feet and hit my head i’md im 6’3. At what speed was it traveling? if it weighs 10 lbs what was its weight really like when it hit me? iM lucky to be alive i was just wondering thank you” (Rodney Ellefson  asked)

Acceleration of a jet plane

Chin Reyes asks:

what acceleration (in meter per square second) is experienced by the passenger in a jet airplane making a level turn of radius 1km at a speed of 400km/hr ?

 

Answer to be posted soon

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