Question
What is the speed of a garbage truck that is $1.20 \times 10^{4} \mathrm{kg}$ and is initially moving at 25.0 $\mathrm{m} / \mathrm{s}$ just after it hits and adheres to a trash can that is 80.0 $\mathrm{kg}$ and is initially at rest?
Step 1
The momentum of an object is given by the product of its mass and velocity. So, the initial momentum of the garbage truck is: \[ p_{i} = m_{1} \cdot v_{1} = 1.20 \times 10^{4} \mathrm{kg} \cdot 25.0 \mathrm{m/s} \] Show more…
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(a) What is the momentum of a garbage truck that is $1.20 \times 10^{4} \mathrm{kg}$ and is moving at 10.0 $\mathrm{m} / \mathrm{s} ?$ (b) At what speed would an $8.00-\mathrm{kg}$ trash can have the same momentum as the truck?
(a) What is the momentum of a garbage truck that is $1.20 \times 10^{4} \mathrm{kg}$ and is moving at $10.0 \mathrm{m} / \mathrm{s} ?$ (b) At what speed would an 8.00 -kg trash can have the same momentum as the truck?
Suppose that a garbage truck is 1.05 Ă— 104 kg and is initially moving at 26.5 m/s. What is the speed of the garbage truck, in meters per second, just after it hits and adheres to a trash can that is 115 kg and initially at rest?
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