Answer:
The better choice is the line of bushes.
Explanation:
Momentum is defined as the force in a time interval. But the linear momentum is also equal to the product of mass by Velocity.
[tex]P=m*v\\P=1000*15\\P=15000[kg*m/s][/tex]
Now assuming that the truck hits the wall in a very short time interval, i.e. around 0.5 [s], we can calculate the force of the impact.
[tex]P=F*t\\15000=F*0.5\\F=30000[N][/tex]
While if you enter a region of bushes. It won't crash with a solid object. Therefore the bushes will not develop a great impact force on the truck.
