Question

Please explain to me in detail

1. A moving truck has momentum. If it moves four times as fast, its momentum is as much. 2. Two carts, one three times as heavy as the other, move down a hill at the same speed. Compared to the lighter cart, the momentum of the heavier cart is as much. 3. A bus is traveling at highway speeds when the momentum of an unlucky bug is suddenly changed as it splatters into the bus' front window. a. Compared to the force that acts on the bug, how much force acts on the bus? i. Less ii. More ili. Same b. The time of impact is the same for both the bug and the bus. Compared to the impulse on the bug, this means the impulse on the bus is: i. Less i. More ii. Same c. Although the momentum of the bus is very large compared to the momentum of the bug, the change in momentum of the bus compared to the change in momentum of the bug, is: Less ii. More iii. Same d. Which undergoes the greater acceleration? i. Bug ii. Bus i. Same e. Which, therefore, suffers the greater damage? i. Bug ii. Bus ii. Same

Answer 1

1.

Since momentum is directly proportional to Velocity

So on increasing Velocity value quadruple then it's momentum also increasesto 4 times of it initial momentum.

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2.

Same asabove

Three times as much as lighter car

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3.

A) option (c) is correct.

using 3 law of motion ( action = reaction)

B) Impulse must be same

C) less

D) since the change in momentum of bug has greater value so acceleration of bug is more

E) as the acceleration is high, so the damage experienced by the bug is more.

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