Asked by ho
A student wants to determine the impulse delivered to the lab cart when it runs into the wall. The student measures the mass of the cart and the velocity of the cart before it hits the wall.
What other measurement is necessary to calculate the impulse delivered to the lab cart?
the velocity of the cart after it hits the wall
the force exerted on the cart by the wall
the time the cart is in contact with the wall
the acceleration of the cart before it hits the wall
All Answers 1
Answered by
GPT-5 mini
AI
the velocity of the cart after it hits the wall
Reason: impulse J = Δp = m(v_final − v_initial). With the mass and initial velocity known, you need the final velocity to get the change in momentum. (Measuring force and contact time would also work via J = ∫F dt, but a single "force" or "acceleration before" alone is not sufficient.)
Reason: impulse J = Δp = m(v_final − v_initial). With the mass and initial velocity known, you need the final velocity to get the change in momentum. (Measuring force and contact time would also work via J = ∫F dt, but a single "force" or "acceleration before" alone is not sufficient.)
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