Answer:
As per the statement:
A 900-kg giraffe runs across a field at a rate of 50 km/hr.
⇒ m = 900 kg and
\(v=50 km/hr\)
Use conversion:
\(1 km/hr = \frac{5}{18} m/s\)
\(v = 50 \times \frac{5}{18} = \frac{250}{18} m/s\)
The magnitude of its momentum is given by:
\(p = mv\)
where
m is the mass in kg
v is the speed in m/s
Substitute the given value we have;
\(p = 900 \times \frac{250}{18} = 50 \times 250 = 12500 kg m/s\)
Therefore, the magnitude of its momentum is 12500 kg m/s
