What is the momentum of a 2000-pound car traveling at 30 miles per hour?

Answer 1

1970

Answer 2

The formula for momentum is defined as: p = mv (momentum = mass * velocity). To start computing the problem we need to know first the unit that we will use. In that case, we will use English unit since the given are in this form but I will still include the SI unit conversion. The English unit for momentum is pound-foot/second (kg-m/s in SI unit). First, we will convert 30mph to feet per second: 30mph is equal to 44 ft/s (13.41 m/s).

Computation:

p = mv

p = (2000 lbs) * (44 ft / s) OR (907.2 kg) * (13.41 m / s)

p = 88, 000 lb-ft/s (pound feet per second) OR 12, 166 kg-m/s (kilogram meters per second)

Answer: 88, 000 lb-ft/s OR 12, 166 kg-m/s

Answer 3

13,140