During an experiment we accelerated a cart up a ramp with a counterweight and an

Question

During an experiment we accelerated a cart up a ramp with a counterweight and an angle of less than 30. I have some questions pertaining to this type of experiment.

what happened to the acceleration of the cart right after the counterweight hits the floor compared to right before the counterweight hit the floor?

The tension in the string immediately after the counterweight hits the floor, is _________ the tension in the string before it hit the floor.

the tension in the string before the cart started moving (when you are still holding it with your hand) was _______ the tension in the string after the cart started moving up the ramp.

True or false: If the mass of the counterweight were doubled, the acceleration of the cart would increase by sqrt(2).

Explanation / Answer

when the counter weight will hit the floor ,

as the force which was pulling the cart up the incline will vanish

and only force left is gravity acting on the cart,

hence , the acceleration of cart is now , down the incline

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as the string will become slack , the tension in the string is zero

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when the cart was in the rest when I was holding

the tension in the string was HIGHER than the tension in the string after the cart started moving

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False ,

if the If the mass of the counterweight were doubled, the acceleration of the cart would increase , but it depends on the mass of cart and the mass of counterweight

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