cart and wheels it down to the lake? (A) wile the carts is being wheeled its is tipped at about a 45 degree Angle( in another words, about halfway between horizontal and vertical). John finds this tiring because he has to full fairly hard to move the cart. after hearing a friends suggestion, he tries and experiment (B) uses an eight-foot long board to lengthen the underside of the cart ( the side of the cart that faces downward while the cart is tipped 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). what will happen

a. the cart will be even harder to pull now because it is longer 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, spite of the weight of the board, because now the angel of the pull is much closer to the angel of movement.
d. there is no real change because it takes the same amount of work to pull given amount of weight no matter how you pull it.