Chapter 6 × G Two Cars Approach An Intex + × Dwww.webassign.net/ en/Student/Asig

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Chapter 6 × G Two Cars Approach An Intex + × Dwww.webassign.net/ en/Student/Asignment Responses revert?pos- &dep-163775D3; Ca search Viewing Saved Wark Revel lo Last Respame 3. Question Details Mty Two cars approach an intersection as shown schematically in the tigure. One ot the cars ignores the stop sign, resulting in a right-angle collision with the cars locked together after the collision. What is the approximate average force between the two cars during the collision? Assume the each have a mass of 1000 kg they are both traveling with an Inltial speed of 20 m/s and the duration of the collislon is 0.1 s. VF Vex m1 m2 5.00 x 105 N O 2.00 x 105 N 1.00 x 10S N 0 5.00 x 1o4 N 1.00 x 104 N 4. Question Details SerCP10 8.CO 006 My A ball of clay of mass m is thrown with a speed v against a brick wall. The clay sticks to the wall and stops. Is the principle of conservation of momentum violated in this example? Type here to search 1x26 PM 10y10/2017

Explanation / Answer

Applying momentum conservation,

1000 x 20i + 1000 x 0 = (1000 + 1000) vf

vf = 10i

F . delta(t) = m (vf - v0)

F (0.1) = 1000 (10i - 20i)

F = 10000 (-10i )

magnitude of force = 1 x 10^5 N Ans(c)

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