Whether a truck comes to a stop by crashing into a haystack or a brick wall, the impulse is: Group of answer choices: O both t

Question

Whether a truck comes to a stop by crashing into a haystack or a brick wall, the impulse is:
Group of answer choices:
O both the same.
O greater with the haystack.
O greater with the brick wall.

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Edana Edana 3 years 2021-09-05T13:29:48+00:00 2 Answers 215 views 0

Answers ( )

  1. vankhanh
    0
    2021-09-05T13:30:55+00:00
    Reply

    Answer:

    Both the same.

    Explanation:

    According to Newton’s second law of motion,

    Impulse = Change in momentum.

    And change in momentum = (momentum before collision) – (momentum after collision)

    And for this scenario, whether the car hits the haystack or the brick wall, it is said that the car comes to a stop. That Is, the momentum after collision (which is mass × velocity) is 0 because the final velocity in both cases is 0.

    So, the impulse in both cases Is equal to the momentum of the truck before collision.

    In both cases,

    Impulse = (mass of truck × velocity of truck before collision)

  2. Maris
    0
    2021-09-05T13:31:34+00:00
    Reply

    Answer:

    greater with the brick wall

    Explanation:

    the impulse does not depend whether its  a haystack or a brick wall  because impulse is the products mass and velocity.

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