In the Loblaws parking lot, the cart attendants decide to have some fun during a winter morning. The two attendants, Otis (72 kg) and Sito (82 kg), exert a minimum horizontal force of 29 N [F] to get their 153 kg carts to begin moving. After the carts have travelled for 11m, Otis and Sito jump on and the carts have a friction of 33 N. a. Draw a free body diagram of the carts at rest, and after they have travelled 11m, showing all forces and with values. b. Determine the coefficient of friction. c. What is the net force exerted on the carts at 11 m? d. What is the acceleration of the carts on the flat surface at 11m? e. If the velocity at 11 m is 4.9 m/s, how far could the carts go on the flat surface before stopping?
In the Loblaws parking lot, the cart attendants decide to have some fun during a winter morning. The two attendants, Otis (72 kg) and Sito (82 kg), exert a minimum horizontal force of 29 N [F] to get their 153 kg carts to begin moving. After the carts have travelled for 11m, Otis and Sito jump on and the carts have a friction of 33 N.
a. Draw a free body diagram of the carts at rest, and after they have travelled 11m, showing all forces and with values.
b. Determine the coefficient of friction.
c. What is the net force exerted on the carts at 11 m?
d. What is the acceleration of the carts on the flat surface at 11m?
e. If the velocity at 11 m is 4.9 m/s, how far could the carts go on the flat surface before stopping?
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