a .4kg soccer ball approaches a player horozontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to mov

Question

a .4kg soccer ball approaches a player horozontally with a velocity of 18 m/s to the north. The player strikes the ball and causes it to move in the opposite direction with a velocity of 22 m/s. What impulse was delivered to the ball by the player?

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Gia Bảo 4 years 2021-07-22T15:26:14+00:00 1 Answers 26 views 0

Answers ( )

  1. thaiduong
    0
    2021-07-22T15:27:22+00:00
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    Answer:160Ns

    Explanation:

    Mass(m)=4kg

    Initial velocity(u)=18m/s

    Final velocity(v)=22m/s

    impulse=change in momentum

    Impulse=m(v-u)

    Since it’s moving in opposite direction impulse=m(v-(-u))

    Impulse=4(22-(-18))

    Impulse=4(22+18)

    Impulse=4×40

    Impulse=160Ns

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