Question

there are three questions to answer for this scenario. a crate is pulled by two ropes after the girls. one rope exerts a force of 500 n and the other exerts a force of 900 n. there is also a frictional force of 600 n acting to the left. the crate is accelerating at +6 m/s². 9 what type of force do the ropes apply? (a) a gravity b tension c normal d applied (b) using the provided information, determine the net force acting on the crate. you must show your work in order to receive full credit.

Explanation:

Part (a)

• Gravity: Acts vertically due to Earth's pull, not from ropes. Eliminate A.
• Tension: Force transmitted through ropes/cables when pulled. Ropes pulling the crate apply tension.
• Normal: Perpendicular to surfaces (e.g., floor on crate), not from ropes. Eliminate C.
• Applied: General term, but tension is specific to ropes. B is correct.

Step1: Identify forces (right = positive, left = negative)

Right forces: \( 500\,\text{N} + 900\,\text{N} = 1400\,\text{N} \)
Left forces: \( 600\,\text{N} \) (friction)

Step2: Calculate net force (\( F_{\text{net}} = F_{\text{right}} - F_{\text{left}} \))

\( F_{\text{net}} = 1400\,\text{N} - 600\,\text{N} = 800\,\text{N} \) (to the right)

Answer:

B. tension

Part (b)