Two rockets launched, Find net momentum

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SUMMARY

The discussion focuses on calculating the net horizontal momentum of two rockets, A and B. Rocket A, with a mass of 1656.4 kg and a velocity of 5.0 m/s at an angle of 15.9 degrees, yields a horizontal momentum of 7965.14 kg·m/s. Rocket B, significantly faster at 960.8 m/s and a mass of 1318.7 kg at an angle of 42.5 degrees, results in a horizontal momentum of 934135.51 kg·m/s. The total net horizontal momentum is calculated to be 942100.65 kg·m/s, confirming the calculations based on the provided data.

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Two rockets are launched. Rocket A has a mass of 1656.4 kg and a velocity of 5.0 m/s at an angle of 15.9 degrees measured off of the positive horizontal axis. Rocket B has a mass of 1318.7 kg and a velocity of 960.8 m/s at an angle of 42.5 degrees measured off of the positive horizontal axis. Find the net horizontal momentum (in kgm/s) of the two rockets.
 
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P=mvcos

Rocket A
p=1656.4*5cos15.9
p=7965.14

Rocket B
p=1318.7*960.8cos42.5
p=934135.51

net p=p1+p2+p3...etc

net p=7965.14+934135.51

NET P=942100.65?
 
Looks good, based on the given information. But it seems weird that the two speeds would be so different, you might want to double check that you are using the correct numbers. The first rocket is slower than a running human, while the second one is going nearly 3 times the speed of sound!
 

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