I stand in a train that is going around a curve. I let go of a ball that is dire

Question

I stand in a train that is going around a curve. I let go of a ball that is directly over a spot on the carpet. The train is going at a constant speed but in a curve. Does the ball hit the spot on the carpet? Explain. The all the masses in the diagram are accelerating to the right. There is no friction. The 2kg mass falls. rises. does not move up or down. Could be a,b or c. Explain A planet orbits a sun. The orbit is not circular as drawn. The sun always applies a force on the planet that is towards the sun. At which point is the planet moving the fastest. Closest. Farthest. The planet has the same speed near and far.

Explanation / Answer

here,

1)

the ball will not hit the spot on the carpet

as the train is moving in a circular path

therefore , a force known as the centripital force acts on the balls which deflects the balls path

therefore the ball does not hits the spot

2)

d)

could be a , b or c

because , its all depends on the magnitude of the force acting

the 2 kg object may accelrates upwards , downwards or does not move up or down

3)
the velocity of a planest in the orbit is inversaly proportional to trhe distance

therfore for the the planet to move fastest

the planet must be a) closest

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