The diagram below represents a student using a spring scale to pull a toy cart across a level table. The student pulled the cart across the table five times. Each time, the student used more force. Force is measured in newtons (N) on the spring scale. The student then calculated the acceleration of the cart, measured in meters per second squared (m/s2). The results are shown in the data table. Determine the mass of the cart. Show all your work. Please include all units.

the correct answer is:

a. formation of precipitation

answer: i dont know the answer but this might

explanation:

l

(newtons first law)

conservation of momentum law states :

momentum before collision = momentum after collision

momentum p (kg-m/s)= mass * velocity

say moving car=1 000 kg, velocity = 10 m/s then p = 1 000*10= 10 000 kg-m/s

say still car = 2 000 kg, velocity = 0 m/s then p = 2 000* 0 = 0 kg-m/s

total momentum prior to collision = 10 000 + 0 = 10 000 kg-m/s

momentum after collision = 10 000 kg-m/s

mass now = 1 000 kg+2 000 kg = 3 000 kg

10 000 = 3 000 kg* velocity m/s

10 000/3 000 = velocity

3.33 m/s = velocity after collision

an impulse is a force applied over time , momentum is exclusive of external forces and a perfect collision is implied