Nguyen Joseph
04/28/2023 · High School
\( F_{g}=m g \) A teenager pushes a 15 kg Walmart cart with a force of 33 N to move it down the aisle at a constant velocity. \( \begin{array}{ll}\text { a. Draw FBD: } & \text { b. What is the force of gravity acting on the cart? } \\ \text { c. What is the normal force on the cart? }\end{array} \) d. What is the force of friction acting on the cart? e. What is the coefficient of friction?.
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- **a. FBD**: Draw forces \( F_g \) downward, \( F_n \) upward, \( F_a \) horizontally (33 N), and \( F_f \) horizontally (33 N, opposite to \( F_a \)).
- **b. Force of gravity**: \( 147.15 \, \text{N} \)
- **c. Normal force**: \( 147.15 \, \text{N} \)
- **d. Force of friction**: \( 33 \, \text{N} \)
- **e. Coefficient of friction**: \( \mu \approx 0.224 \)
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