Science/Physics

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John Loads A Collapsed Inflatable Boat Into A Two-wheel "grocery Type" Handcart and wheels it down the lake. (A) while the cart is being wheeled it is tipped at about a 45-degree angle (in other words, about halfway between horizontal and vertical) John finds it tiring because he has to pull fairlyhard to move the cart. After hearing a friends suggestion, he tries an experiment. (B) He uses an 8 Foot Long Board To Lengthen The Underside Of The Cart (the side of the cartthat faces downward while the cart is tipped and being pulled along), The End Of The Board Serves As A New Extended Handle For His Cart.Now When He Goes To Pull His Longer Cart, He Is Pulling With The Cart At A 20-degree Angle (much Closer To The Ground Than Before). Based On What You Read Above The Direction Of Force And Movement , What Will Happen? I think C

a. the cart will be even harder to pull now because it is lower to the ground
b. the cart will be even harder to pull now because of the extra weight of the board
c. The cart will be easier to pull, in spite of the weight of the board, because now the angle of the pull is much closer to the angle of movement.
d. there is no real change because it takes the same amount of to pull a given amount of weight no matter how you pull it

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asked by Jenny

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