Question

which object would have the most momentum? a. a 500 - pound car moving at 20 miles per hour b. a 200 - pound car moving at 60 miles per hour c. a 100 - pound car moving at 80 miles per hour d. a 50 - pound car moving at 100 miles per hour please select the best answer from the choices provided.

Explanation:

Step1: Recall momentum formula

Momentum $p = mv$ (where $m$ is mass and $v$ is velocity). We need to calculate momentum for each option.

Step2: Calculate momentum for option A

For a 500 - pound car moving at 20 miles per hour, $p_A=500\times20 = 10000$ pound - miles per hour.

Step3: Calculate momentum for option B

For a 200 - pound car moving at 60 miles per hour, $p_B=200\times60=12000$ pound - miles per hour.

Step4: Calculate momentum for option C

For a 100 - pound car moving at 80 miles per hour, $p_C=100\times80 = 8000$ pound - miles per hour.

Step5: Calculate momentum for option D

For a 50 - pound car moving at 100 miles per hour, $p_D=50\times100=5000$ pound - miles per hour.

Answer:

B. a 200 - pound car moving at 60 miles per hour