I Am Not Sure How To Approach These 1 (19.51 KiB) Viewed 9 times
A car's bumper is designed to withstand a 7.2 km/h (2.0 m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.2 m while bringing a 944.0 kg car to rest from an initial speed of 2.0 m/s. N Question Help: Read
Suppose a 448 kg kookaburra (a large kingfisher bird) picks up a 67 g snake and raises it 2.2 m from the ground to a branch. (a)How much work (in J) did the bird do on the snake? J (b)How much work (in J) did it do to raise its own center of mass to the branch? Question Help Read
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