Hi there!
Recall the equation for momentum:
[tex]\large\boxed{p = mv}[/tex]
p = linear momentum (kgm/s)
m = mass (kg)
v = velocity (m/s)
We can calculate each object's momentum and compare.
Cement truck:
[tex]p = 20000 \cdot 5 = 100000kg\frac{m}{s}[/tex]
Race car:
[tex]p = 1000 \cdot 90 = 90000 kg\frac{m}{s}}[/tex]
Since 100,000 > 90,000, the cement truck has the greater momentum.
