Answer:
10,000 N opposite to the direction of the momentum.Step-by-step explanation:
Given that :
Mass of the truck = 1,000 kg
Velocity of the truck = 10 m/s
Time it takes to stop = 1.0 s
After the collision, the final momentum = 0
Before the collision,
Momentum = Mass × Velocity
= 1000 × 10
= 10,000 kg m/s
So, change in momentum (∆p) = 0 - 10,000 = -10,000 kg m/s
Change in time (∆t) = 1.0 - 0 = 1.0
Thus,
Force = ∆p/∆t
= -10,000/1.0
= -10,000 N
Here, negative sign represents the force is in the direction opposite to the momentum.